AnswersNC-Foundations of Math 1 Fall 2nd 9 WeeksRate of Change and Introduction to Slope

Exploring Slope Answers

0 verified answers
1
Free Preview

Which statement correctly describes the slope of the linear function that is represented by the data in the table?xy8–88–4808488

A
The slope is positive.
B
The slope is negative.
C
The slope is zero.
D
There is no slope.
2
Free Preview

A line passes through the points (7, 10) and (7, 20). Which statement is true about the line?

A
It has a slope of zero because in the formula is zero, and the numerator of a fraction cannot be zero.
Option A
B
It has a slope of zero because in the formula is zero, and the denominator of a fraction cannot be zero.
Option B
C
It has no slope because in the formula is zero, and the numerator of a fraction cannot be zero.
Option C
D
It has no slope because in the formula is zero, and the denominator of a fraction cannot be zero.
Option D
3

Which graph has a slope of ?

Question illustration
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
4

Isaac and Sakura are both doing a science experiment where they are measuring the temperature of a liquid over time. Graphs that represent each of their data are shown below.Which statement is correct?

Question illustration
A
The slope of the graph that represents Isaac’s data is positive, and the slope of the graph that represents Sakura’s data is positive.
B
The slope of the graph that represents Isaac’s data is positive, and the slope of the graph that represents Sakura’s data is negative.
C
The slope of the graph that represents Isaac’s data is negative, and the slope of the graph that represents Sakura’s data is positive.
D
The slope of the graph that represents Isaac’s data is negative, and the slope of the graph that represents Sakura’s data is negative.
5

Ellen thinks that if a line has no slope, then it never touches the y-axis. Which line proves that her statement is incorrect?

A
x = 0
B
y = 0
C
x = 1
D
y = 1
6

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.
7

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
8

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
9

The graph shows the cost of a lunch in a school’s cafeteria since school started. Which is correct about the graph’s slope?

Question illustration
A
Its slope is positive.
B
Its slope is negative.
C
Its slope is zero.
D
It has no slope.
10

Raj is deciding between two cell phone plans, A and B, which are both linear functions. The monthly charge for plan A according to the number of minutes used is shown in the table.Monthly Charge for Plan AMinutes used, xMonthly charge ($), y014.45314.84615.23915.621216.01Plan B has the same monthly base charge as plan A, but it charges a different amount per minute used. If the total monthly charge for plan B is $22.10 when 45 minutes are used, what is the slope of the linear function that represents the cost of plan B?

A
0.13
B
0.17
C
0.39
D
0.45

Did you find these answers helpful?

More from this Course

Quiz
10 verified answers

Rate of Change and Introduction to Slope

Quiz
15 verified answers

Constructing Linear Functions

Quiz
1 verified answers

Constructing Linear Functions