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2020-21 Unit 4 Test

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Last updated almost 4 years ago
19 questions
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Question 1
1.

HONOR CODE:

By submitting this assessment, I am affirming that I have not given or received any unauthorized help on this assignment, and that this work is my own.

Question 2
2.

Write the equation for a horizontal line that goes through the point (2,3)

Question 3
3.

Write the equation for a vertical line that goes through the point (2,3)

Question 4
4.

Show your work!
Identify the x-intercept of 2x + 3y = 6 as an ordered pair.

Question 5
5.

Show your work!
Identify the y-intercept of 2x + 3y = 6 as an ordered pair.

Question 6
6.

Sketch the line given by 2x + 3y = 6.

Question 7
7.

Show your work!
Rewrite the equation in slope-intercept form.

Question 8
8.

Write an equation in slope-intercept form of the line shown.

Question 9
9.

Show your work!
Write an equation in slope-intercept form for the linear function f with the given values:

f(2) = -2, f(5) = 7

Question 10
10.

You are taking Tae Kwon Do classes that costs $15 a month. In addition to the classes, you need to purchase a uniform. You paid a total of $108 for the uniform and 6 months of classes.

Write an equation in slope-intercept form that gives the total cost, y (in dollars) as a function of the length of time you have been taking classes, x (in months).

Show your work.

Question 11
11.

Show your work!
Write an equation in point-slope form of the line that passes through the given points:

(2, -2) and (5, 7)

Question 12
12.

Identify the slope of the given equation:

Question 13
13.

Identify the point of the given equation:

Question 14
14.

Show your work!
Write an equation in standard form that passes through the given points.

(2, 9) and (4, -1)

Question 15
15.

Question 16
16.

Show your work!
Write the equation of the line (any form!) perpendicular to y = 2x - 6 that goes through the point (4, -9).

1
2
Question 18
18.

Perform a linear regression to find the equation of the best fitting line. Round to the hundredths place, if necessary.

2
Look at the equations below:

Choose all that apply:
Equations P and Q are parallel
Equations P and R are parallel
Equations P and S are perpendicular
Equations Q and S are perpendicular
Equations R and S are perpendicular
Question 17
17.

Question 19
19.

If a 100-gram serving of an avocado contains 161 kilocalories of energy, approximately how many carbohydrates does it contain?

Describe the correlation of the data based on your scatter plot.
Positive
Negative
No Correlation