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Slope & COP Test

Authored by Dean Lollis

Mathematics

8th Grade

CCSS covered

Used 3+ times

Slope & COP Test
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25 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which equation finds the slope from two points?

Answer explanation

The correct equation to find the slope (m) from two points (x1, y1) and (x2, y2) is m=(y2-y1)/(x2-x1). This formula calculates the change in y over the change in x, which defines the slope of the line between the two points.

Tags

CCSS.8.EE.B.5

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following is the slope-intercept form?

y = mx + b

y = m + bx

y = mx - b

y = b + mx

Answer explanation

The slope-intercept form of a linear equation is given by y = mx + b, where m is the slope and b is the y-intercept. This matches the first option, making it the correct choice.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In y = kx, what does k represent?

k is the y-intercept

k is the x-intercept

k is the value of y when x is zero.

k is the constant of proportionality.

Answer explanation

In the equation y = kx, k represents the constant of proportionality, indicating how y changes with respect to x. It defines the ratio of y to x, making it the correct choice.

Tags

CCSS.HSF-LE.A.1B

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In y = 5x, what is the constant of proportionality?

y

5x

0

5

Answer explanation

In the equation y = 5x, the constant of proportionality is the coefficient of x, which is 5. This means y varies directly with x, and for every unit increase in x, y increases by 5.

Tags

CCSS.7.RP.A.2B

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which math term describes how steep a line is?

slope

intercept

coordinate

angle

Answer explanation

The term that describes how steep a line is in mathematics is 'slope'. It quantifies the angle of inclination of the line, indicating how much it rises or falls as you move along the x-axis.

Tags

CCSS.8.EE.B.5

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

What is the constant of proportionality in the table?

$3

$4

$2

$9

Answer explanation

The constant of proportionality is found by dividing the dependent variable by the independent variable. In this case, the ratio that consistently equals 9 indicates that $9 is the correct constant of proportionality.

Tags

CCSS.7.RP.A.2B

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Is this graph proportional or non proportional?

proportional

non proportional

Answer explanation

The graph is non-proportional because the relationship between the variables does not maintain a constant ratio. In a proportional graph, the line would pass through the origin and have a consistent slope.

Tags

CCSS.7.RP.A.2D

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