AnswersMathematics 8Rate of Change and Introduction to Slope

Rate of Change and Introduction to Slope — Quiz Answers

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1
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Which statement best explains Marisol’s error?

A
Marisol computed the fraction with numerator x sub 2 minus x sub 1 and denominator y sub 2 minus y sub 1 .
B
Marisol computed the fraction with numerator x sub 2 minus y sub 2 and denominator x sub 1 minus y sub 1 .
C
Marisol computed the fraction with numerator y sub 2 minus x sub 2 and denominator y sub 1 minus x sub 1 .
D
Marisol computed the fraction with numerator y sub 2 minus y sub 1 and denominator x sub 1 minus x sub 2 .
2
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A piece of climbing equipment at a playground is 6 feet high and extends 4 feet horizontally. A piece of climbing equipment at a gym is 10 feet high and extends 6 feet horizontally. Which statement best compares the slopes of the two pieces of equipment?

A
Because 3 fifths is less than 2 thirds , the slope of the climbing equipment at the playground is greater.
B
Because 5 thirds is less than 3 halves , the slope of the climbing equipment at the playground is greater.
C
Because 5 thirds is greater than 3 halves , the slope of the climbing equipment at the gym is greater.
D
Because 3 fifths is greater than 2 thirds , the slope of the climbing equipment at the gym is greater.
3

The table represents a linear function. x y 1 9 −1 −3 What is the slope of the function? Enter your answer in the box.

Answer:

6

4

Four students drew graphs of a linear function. Which student drew a line with a slope of 3? Open image in full-screen view Open image in full-screen view Open image in full-screen view Open image in full-screen view

A
Analise
B
Charlie
C
Dariya
D
Benito
5

The ordered pairs in the given table represent a linear function. x y 6 2 9 8 What is the slope of the function?

A
2
B
1 half
C
1 fourth
D
4
6

The ordered pairs in the given table represent a linear function. x y 2 3 5 9 What is the slope of the function?

A
1 fourth
B
2
C
4
D
1 half
7

Xavier is attempting to recreate a problem his teacher showed him in class. To do so, he creates the table. x y 1 3 2 ? He remembers that the slope of the line through the ordered pairs in the table was 4 What is the missing y -value in the table?

A
12
B
8
C
7
D
5
8

The given table shows how much Joe earns, y, after working x hours. Joe's Earnings Hours worked Money earned 4 30 dollars 10 75 dollars 12 90 dollars 22 165 dollars The relationship between money earned and hours worked is linear. Joe computes the slope between open paren 4 comma 30 close paren and open paren 12 comma 90 close paren , then computes the slope between open paren 4 comma 30 close paren and open paren 10 comma 75 close paren How do the two slopes compare?

A
The slope between open paren 4 comma 30 close paren and open paren 12 comma 90 close paren and between open paren 4 comma 30 close paren and open paren 10 comma 75 close paren is the same.
B
The slope between open paren 4 comma 30 close paren and open paren 12 comma 90 close paren is greater because the ordered pairs are farther apart on the x -axis.
C
The slope between open paren 4 comma 30 close paren and open paren 12 comma 90 close paren is greater because the ordered pairs are farther apart on the y -axis.
D
The slope between open paren 4 comma 30 close paren and open paren 12 comma 90 close paren is less because 4 is a factor of 12 and 30 is a factor of 90 .
9

What is the slope of the line on the graph given?

A
5
B
3
C
1 fifth
D
1 third
10

Which statement describes Jalen’s error?

A
Jalen used an ordered pair that is not on the line.
B
Jalen made a computational error.
C
Jalen used the ordered pairs in the wrong order.
D
Jalen computed the ratio of change in x to change in y .

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Rate of Change and Introduction to Slope — Quiz…