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Biblioteka

Calculator hacks (practice)

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Posljednje ažuriranje about 3 years ago
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Pitanje 1
1.

An equation is shown below.

3x - 10x + 5 = 5x + 17

What is the value of x that makes the equation true?

Pitanje 2
2.

Which function is equivalent to g(x) = x2 + 15x - 54 ?

Pitanje 3
3.

Write the equation in slope-intercept form of the line that passes through the points (-4,2) and (12,6)? Use decimals when needed.

Pitanje 4
4.

What is the positive solution to this equation?

4x2 + 12x = 135

Record your answer. Be sure to use the correct place value.

Pitanje 5
5.

The table represents some points on the graph of an exponential function.

Which function represents the same relationship?

Pitanje 6
6.

The table shows a linear relationship between x and y.

What is the rate of change of y with respect to x?

Pitanje 7
7.

Which graph best represents y = 10(0.85)x ?

Pitanje 8
8.

Which expression is equivalent to

(10 + 7r - r2) + (-6r2 - 18 + 5r) ?

Pitanje 9
9.

Which expression is equivalent to

Pitanje 10
10.

Which expression is equivalent to

35m2 - 63 ?

Pitanje 11
11.

Which expression is a factored form of 2x2 - 25x + 63 ?

Pitanje 12
12.

Which expression is equivalent to 16w2 + 24w + 9 ?

Pitanje 13
13.

Which expression is a factor of 21x2 + 13x - 20?

Pitanje 14
14.

Which expression is equivalent to 9n2 - 25 ?

Pitanje 15
15.

Which expression is equivalent to

Pitanje 16
16.

Which expression is equivalent to

Pitanje 17
17.

Which expression is equivalent to

Pitanje 18
18.

The area of a rectangle is 54x9y8 square yards. If the length of the rectangle is 6x3y4 yards, which expression represents the width of the rectangle in yards?

Pitanje 19
19.

Which of the following is equivalent to 3x - 4y = 6?

Pitanje 20
20.

Given p(x) = -4(x - 15)2 +2, what is the value of p(7)?

Record your answer.

Pitanje 21
21.

A baker determined the annual profit in dollars from selling pies using p(n) = 52n - 0.05n2 , where n is the number of pies sold. What is the annual profit if the baker sells 400 pies?

Pitanje 22
22.

Given f(x) = 1/3(4 - x)2 , what is the value of f(16)? Record your answer.

Pitanje 23
23.

In a sequence of numbers, a3 = 0, a4 = 6, a5 = 12, a6 = 18, a7 = 24. Based on this information, which equation can be used to find the nth term in the sequence, an?

Pitanje 24
24.

What is the equation is slope-intercept form of the line that passes through the points (-26, -11) and (39, 34)?

Pitanje 25
25.

The table represents some points on the graph of linear function f .

Which function represents f ?

Pitanje 26
26.

The value of y is directly proportional to the value of x. When x = 3.5, the value of y is 14. What is the value of y when x = 28 ? Record your answer.

Pitanje 27
27.

What is the equation in slope-intercept form of the line that passes through the point (5,0) and is parallel to the line represented by y = 1.2x + 3.8 ?

Pitanje 28
28.

What is the equation in slope-intercept form of the line that crosses the x-axis at 36 and is perpendicular to the line represented by y = -4/9x + 5 ?

Pitanje 29
29.

The tables of ordered pairs represent some points on the graphs of lines f and g ?

Which system of equations represents the lines f and g ?

Pitanje 30
30.

What is the solution to 4(y - 3) + 19 = 8(2y + 3) + 7 ?

Pitanje 31
31.

What is the solution to this equation?

-4(2m - 7) = 3(52 - 4m)

Pitanje 32
32.

Which function is equivalent to y = 3(x + 2)2 + 7 ?

Pitanje 33
33.

The graph of a quadratic function is shown on the grid.

Which function is best represented by this graph?

Pitanje 34
34.

The graph shows the height in feet of an object above the ground t seconds after it was launched from the ground.

Which function is best represented by the graph of this situation?

Pitanje 35
35.

Given g(x) = x2 - 6x - 16, which statement is true?

Pitanje 36
36.

Which statement about k(x) = -x2 - 2x + 15 is true?

Pitanje 37
37.

The graph of f(x) = x2 was translated 4.5 units to the left to create the graph of function g. Which function represents g ?

Pitanje 38
38.

The graph of f(x) = x2 is transformed to create the graph of h(x) = 2f(x). Which graph best represents f and h?

Pitanje 39
39.

Which value of x is a solution to this equation?

Pitanje 40
40.

What is the solution set for 2x2 + 15 = -11x

Pitanje 41
41.

The scatterplot and table show the weekly profit in dollars earned from the sale of pastries at seven different prices. The data can be modeled by a quadratic function.

Which function best models the data?

Pitanje 42
42.

The table of values shows a linear relationship between x and y.

What is the slope of the line represented by the table of values?

Pitanje 43
43.

What is the slope of the line that passes through the points (5, -11) and (-9, 17)?

Pitanje 44
44.

The values in the table represent a linear relationship between x and y.

What is the rate of change of y with respect to x?

Pitanje 45
45.

A contractor’s total earnings from a job include a fixed amount plus an amount based on the number of hours worked. The values in the table represent the linear relationship between the number of hours worked and the contractor’s total earnings in dollars.

What is the rate of change of the contractor’s total earnings in dollars with respect to the number of hours worked?

Pitanje 46
46.

The graph of a linear function is shown on the grid.

What is the rate of change of y with respect to x for this function?

Record your answer. Write as a decimal as needed.

Pitanje 47
47.
Pitanje 48
48.

Graph -5y = -6x + 15.

  • Kliknite na karticu Grafikon (Grafikon 1, Grafikon 2 i tako dalje) za svaki grafikon koji trebate nacrtati.
  • Kliknite na pozadinu grafikona da biste dodali tačku. Dodajte dvije tačke da biste kreirali grafikon. Prevucite tačku ili unesite x i y koordinate da biste uredili njen položaj. Kliknite na tačku da biste je izbrisali.
  • Nakon što kreirate grafikon, možete označiti kućicu s isprekidanom linijom.
Pitanje 49
49.

The graph of linear function f passes through the point (1, −9) and has a slope of −3.

What is the zero of f?

Pitanje 50
50.

The graph of linear function h is shown on the grid.

Given f(x) = x and h(x) = af(x), what is the value of a? Use one decimal value as needed.

Pitanje 51
51.

A zookeeper recorded the feeding schedule for a baby rhinoceros for 20 weeks. The table and scatterplot show the percentage of the baby rhinoceros’s body mass that was used to determine the amount of food given at each feeding as a linear function of its age in weeks.

What is the best prediction of the percentage of the baby rhinoceros’s body mass that should be used to determine the amount of food given at each feeding when it is 25 weeks old?

Pitanje 52
52.

A company advertises on a website. A worker tracked the number of visits to the website and the number of clicks on the advertisement. The table shows the data for several days. A linear function can be used to model the data.

Based on the table, what is the best prediction of the number of clicks on the advertisement if 1,500 people visit the website?

Pitanje 53
53.

The table represents some points on the graph of an exponential function.

Based on the table, which function represents the same relationship?

Pitanje 54
54.

The graph shows the number of game consoles sold in millions since 2009.

Based on this information, which function best models the number of game consoles sold in millions x years since 2009?

Pitanje 55
55.

Jeffery is a spelunker. He explores caves. Jeffery has been collecting data on the growth of stalactites over a period of years, as shown in the table.

Stalactite Growth

Use technology to determine an exponential function to model the data and predict the length of the stalactite after 10 years.

Record your answer. Use 2 decimal places.