AnswersLCS-Teacher Remediation-MJ Grade 8 Pre-Algebra_Q1Unit Test

Exploring Slope Answers

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Lorena calculated the slope of the linear function that is represented by the table of values as shown.xy–1015–827–639–451–263What did she do wrong?

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A
She used the wrong formula for slope.
B
She used the wrong points to determine the slope.
C
She made a mistake when she subtracted from .
Option C
D
She made a mistake when she subtracted from .
Option D
2
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Which graph has a slope of ?

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A
On a coordinate plane, a line goes through points (0, negative 1) and (2, 2).
Option A
B
On a coordinate plane, a line goes through points (negative 3, 1) and (0, negative 1).
Option B
C
On a coordinate plane, a line goes through points (0, negative 1) and (3, 1).
Option C
D
On a coordinate plane, a line goes through points (negative 2, 2) and (0, negative 1).
Option D
3

What is the slope of the line in the graph?slope =

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Answer not available
4

Which statement is correct?

A
A horizontal line has no slope.
B
A vertical line has a slope of zero.
C
A line that rises from left to right has a positive slope.
D
A line that falls from right to left has a negative slope.
5

The linear function that is represented by which table has the same slope as the graph?

Question illustration
A
A 2-column table with 5 rows. Column 1 is labeled x with entries negative 25, negative 21, negative 17, negative 13, negative 9. Column 2 is labeled y with entries negative 9, negative 7, negative 5, negative 3, negative 1.
Option A
B
A 2-column table with 5 rows. Column 1 is labeled x with entries negative 25, negative 21, negative 17, negative 13, negative 9. Column 2 is labeled y with entries 9, 7, 5, 3, 1.
Option B
C
A 2-column table with 5 rows. Column 1 is labeled x with entries negative 9, negative 7, negative 5, negative 3, negative 1. Column 2 is labeled y with entries negative 25, negative 21, negative 17, negative 13, negative 9.
Option C
D
A 2-column table with 5 rows. Column 1 is labeled x with entries 1, 3, 5, 7, 9. Column 2 is labeled y with entries negative 9, negative 13, negative 17, negative 21, negative 25.
Option D
6

The difference in the x-coordinates of two points is 3, and the difference in the y-coordinates of the two points is 6. What is the slope of the line that passes through the points?

A
2
B
3
C
6
D
9
7

What is the slope of the line in the graph?

Question illustration
A
Negative four-thirds
Option A
B
Negative three-fourths
Option B
C
Three-fourths
Option C
D
Four-thirds
Option D
8

Bianca graphed her weight and height over the past several years.Which describes the slope of the line on Bianca’s graph?

Question illustration
A
Its slope is positive.
B
Its slope is negative.
C
Its slope is zero.
D
It has no slope.
9

What is the slope of the line represented by the points in the table?

Question illustration
A
Negative 0.05
Option A
B
Negative .005
Option B
C
0.005
Option C
D
0.05
Option D
10

The speed of an object in space is shown in the graph.What is the slope of the line?

Question illustration
A
10
B
15
C
20
D
25

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