Big Ideas: 8th Grade Chapter 4 Review

Front

What is the equation of a line with a slope of 1/2?

Back

y = 1/2x

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

What is the graph of the equation y = -x + 2?

Back

The graph is a straight line that intersects the y-axis at (0, 2) and has a slope of -1.

Front

What is the slope of a vertical line?

Back

Undefined

Tags

CCSS.8.EE.B.5

Front

What is the slope of a line that decreases from left to right?

Back

Negative

Tags

CCSS.8.EE.B.5

Front

What makes a graph proportional?

Back

A proportional graph is a straight line that passes through the origin.

Tags

CCSS.7.RP.A.2D

Front

How do you find the slope between two points?

Back

Slope (m) = (y2 - y1) / (x2 - x1)

Tags

CCSS.8.EE.B.5

Front

What does a slope of 0 indicate about a line?

Back

A slope of 0 indicates a horizontal line.

Tags

CCSS.8.EE.B.5

Front

What is the slope of a line that passes through the points (2, 3) and (4, 7)?

Back

Slope = (7 - 3) / (4 - 2) = 2.

Tags

CCSS.8.EE.B.5

Front

What is the y-intercept of the line represented by the equation y = 3x + 4?

Back

The y-intercept is 4.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope.

Tags

CCSS.8.EE.B.6