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Biblioteka

STAAR HS Algebra I

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Posljednje ažuriranje 3 months ago
50
Obavezno
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A1.C.11.a
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Pitanje 1
1.

Which expression is equivalent to 7\sqrt{45}?

Pitanje 2
2.

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

Which function is best represented by the graph of h?

Pitanje 3
3.
Drugi mogući odgovor:

-\frac{1}{3}

-18
-3
2
3
18

\frac{1}{3}

-2
Pitanje 4
4.

Which graph best represents a quadratic function that has no real zeros?

Pitanje 5
5.

An investor deposited money into an investment account that earns interest compounded annually. The function shown models the amount of money in the account in dollars after t years.

A(t)=1,550(1.02)^t

Which statement best interprets one value in the function?

Pitanje 6
6.

Which expression is equivalent to \frac{1}{3}(6x^{2}y)^{2}(2x^{3}y^{4}) for all value of x and y where the expression is defined?

Pitanje 7
7.

The graph of a line is represented by the equation by the equation 5x-8y=40. Which value represents the rate of change of y with respect to x for the equation?

Pitanje 8
8.
Drugi mogući odgovor:
-14
14
61
47
-61
-47
Pitanje 9
9.

What is the range of the function f(x)=-x^{2}+60x?

Pitanje 10
10.

A counselor asked college student who had jobs how many hours they worked each week. The counselor then compared the number of hours each student worked and the student's overall grade average. The table shows the data.

Based on the correlation coefficient for the data, what type of linear association exists between hours worked and overall grade average?

Pitanje 11
11.

Which statement about the graph of y=16(0.5)^x is NOT true?

Pitanje 12
12.

What is the solution set that best describes the inequality y\ge\frac{1}{2}x-2?

Graph the solution set of the linear inequality in the coordinate plane.

Pitanje 13
13.

Two customers purchased coffee and doughnuts at a coffee shop. Each cup of coffee costs the same amount, and each doughnut costs the same amount.

  • The first customer paid $4.90 for 1 cup of coffee and 2 doughnuts.

  • The second customer paid $8.60 for 2 cups of coffee and 3 doughnuts.

What is the cost of 1 cup of coffee?

Pitanje 14
14.

The graph of a linear function is shown.

Which function best represents the relationship shown in the graph?

Pitanje 15
15.

Two hikers begin hiking at the saem time from different locations on a trail. The system of equations graphed on the grid represents this situation.

Which value best represents the number of hours the two hikers have been hiking when they are the same distance from the start of the trail?

Pitanje 16
16.

Which function is equivalent to f(x)=6x^{2}-23x+21?

Pitanje 17
17.

A part of an exponential function is graphed on the grid.

Which statements are true about the domain and range of the part of the function shown?

Select TWO correct answers.

Pitanje 18
18.

Function g is defined by g(x)=3x^{2}-2x-5. What are the solutions to g(x)=0?

Pitanje 19
19.

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

Which function represents the relation shown in the table?

Pitanje 20
20.

Which situation best represents association but NOT causation?

Pitanje 21
21.

The quadratic function f(x)=x^2 is transformed to create g as shown in the graph.

What is the equation for g?

Pitanje 22
22.

Graph the line represented by the equation 2x+3y=6.

Pitanje 23
23.

A swimming pool can be rented for $110 per hour. The pool can be rented for either 1 hour or 2 hours. The cost in dollars to rent the pool is a function of the number of hours the pool is rented.

What are the domain and range of the function for this situation?

Pitanje 24
24.

What value of m makes the \frac{2}{3}(m-9)=\frac{1}{3}(m-27)?

Pitanje 25
25.
Drugi mogući odgovor:
-1
-4
0
1
minimum
maximum
-3
Pitanje 26
26.

Hot dogs and bags of popcorn were sold at a concession stand. One family paid $8.00 for 2 hot dogs and 3 bags of popcorn. Another family paid $16.50 for 5 hot dogs and 4 bags of popcorn.

Which system of equations can be used to determine the price in dollars of a hot dog, x, and the price in dollars of a bag of popcorn, y?

Pitanje 27
27.

An exponential function has these characteristics:

  • The y-intercept is 2.

  • The function increases at a rate of 50%.

Which graph best represents this function?

Pitanje 28
28.

The graph shows point W and line p.

Which equation best represents the point-slope form of the line that passes through W and is parallel to line p?

Pitanje 29
29.

If f(x)=x^2 and g (x)=f (x+7.2), what is the vertex of the graph of g?

Pitanje 30
30.
Pitanje 31
31.

What are the solutions to the equation 5(x+3)^{2}=75?

Pitanje 32
32.

A part of quadratic function g is graphed on the grid.

What is the domain of the part of the function shown?

Pitanje 33
33.

Which expression is equivalent to \frac{16k^{9}m^{7}}{4k^{3}m^{14}} where the expression is defined?

Pitanje 34
34.

For quadratic function h, h(-\frac{3}{2})=0 and h(5) = 0. What is a possible equation for h in factored form?

Move the correct answer to each box. Not all answers will be used.

Drugi mogući odgovor:

(x-5)

(x + 5)

(2x-3)

(3x-2)

(2x+3)

(3x+2)

Pitanje 35
35.

A triangle has sides whose lengths in units are represented by polynomials as shown, where x is a positive integer.

Which expression represents the perimeter of teh triangle in units?

Pitanje 36
36.

The total cost, y, for x tickets to a concert includes a flat fee for processing and a cost per ticket. One customer purchased 4 tickets for a total cost of $160. Another customer purchased 8 tickets for a total cost of $300.

Which linear equation represents the total cost in dollars, y, for x tickets?

Pitanje 37
37.

Which expression is a factor of x^{2}+7x-30?

Pitanje 38
38.
Pitanje 39
39.

Line n is shown on the coordinate grid. The table of ordered pairs represents some points on line p.

Which system of equations represents line n and line p?

Pitanje 40
40.

Which function is equivalent to f(x)=4(x-3)^{2}+5?

Pitanje 41
41.

Which graph best represents the solution set of x+2y\ge2?

Pitanje 42
42.

A system of linear equations is shown.

6x-2y=10

y=3x-5

Which statement about the system is true?

Pitanje 43
43.
Pitanje 44
44.

Which relation best represents y as a function of x?

Pitanje 45
45.

The function f(x)=-4x+8 represents the first of two equations in a system of linear equations. The second equation in the system has a different slope than the first equation.

Which statement is true about the solution to the system of equations?

Pitanje 46
46.

What is the solution to the equation 7w-2(w-9)=4-8(w+2)?

Pitanje 47
47.

Choose two factors to create an expression equivalent to 4x^{2}-81.

Move the correct answer to each box. Each answer may be used more than once. Not all answers will be used.

Drugi mogući odgovor:

2x-9

4x-9

2x+9

9x+2

4x+9

9x-2

Pitanje 48
48.

If f(x)=3x^{2}-7, what is the value of f(4)?

Pitanje 49
49.

An athlete ran at a constant speed for 12 seconds. The part of the linear function shown represents the distance the athlete ran in yards, y, as a function of the time in seconds, x.

What is the domain of the function for this situation?

Pitanje 50
50.

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

What value best represents the y-intercept of the line?