AnswersGA-8th Grade MathematicsWriting Linear Functions

Writing Linear Functions Answers

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1
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What is the point-slope form of a line that has a slope of 3 and passes through the point (–1, 4)?

A
y – (–1) = 5(x – 4)
B
4 – y1 = 3(–1 – x1)
C
y – 3 = –1[(x – (–4)]
D
y – 4 = 3[(x – (–1)]
2
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–5–30✔ 13

A
–5
B
–3
C
0
D
1
E
3
3

–5✔ –3013

A
–5
B
–3
C
0
D
1
E
3
4

✔ –5–3013

A
–5
B
–3
C
0
D
1
E
3
5

Question text not available

Answer:

0.75

6

What is the equation in slope-intercept form?

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
7

Examine the steps to determine whether the student made an error.The student made an error in Step 1an error in Step 2✔ an error in Step 3an error in Step 4no error.

A
an error in Step 1
B
an error in Step 2
C
an error in Step 3
D
an error in Step 4
E
no error
8

You are given a line that has a slope of 4 and passes through the point . Which statements about the equation of the line are true? Check all that apply.

Question illustration
A
The y-intercept is -1.
B
The slope-intercept equation is .
Option B
C
The point-slope equation is .
Option C
D
The Point corresponds to (x1, y1) in the point-slope form of the equation.
Option D
9

Write the equation in slope-intercept form of a line that has a slope of and passes through the point (-6, 0).

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
10

Analyze the steps to identify the error.

A
Step1: student switched the x and y values
Option A
B
Step 3: student needed to add to both sides
Option B
C
Step 5: student subtracted incorrectly
Option C
D
Step 6: student needed to add the b value
Option D
11

y = ✔ –3–0.2530.253.75x

A
–3
B
X –0.25
C
3
D
0.25
E
3.75
12

Explain why the work is not correct.

Answer:

Answer

13

+ (–3)✔ (–0.25)30.253.75

A
(–3)
B
(–0.25)
C
3
D
0.25
E
3.75
14

Which facts did you include in your explanation? Check all that apply.The student should have simplified the equation to have y + 8 on the left.Then, the student should have subtracted 8 from both sides of the equation.The value of b should be 4, not 20.

A
The student should have simplified the equation to have y + 8 on the left.
B
Then, the student should have subtracted 8 from both sides of the equation.
C
The value of b should be 4, not 20.

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