Graphs of Lines in Slope Intercept Form

Which of the following is NOT a correct description of the graph of the function y=-2/3x+6

• The graph of the function is a line that passes through (0,6) with a slope of -2/3.

• When the x-value increases by 3 units the y value decreases by 2 units

• The graph of the function contains the points (3,4), and (6,2), (-3,8)

• The graph of the function contains the points and (6,2), (3,8), (9,12).

Given the function y = 3.54x − 54.68, which statement best describes the effect of increasing the y-intercept by 33.14?

• The new line is parallel to the original.

• The new line has a greater rate of change.

• The new line is steeper

• The new line shifts down.

If the slope of the equation y = −3/5 x + 4 is changed to 3/5 and the y-intercept is changed to (0, −4), which statement best describes this situation?

• The new line is perpendicular to the original line.

• The new line is parallel to the original line.

• The new line and the original line have the same y-intercept.

• The new line and the original line have the same x-intercept.

Tags

CCSS.8.EE.B.5

Which of the following is NOT a correct description of the graph of the function y=-2/3x+6?

• The graph of the function is a line that passes through (0,6) with a slope of -2/3.

• When the x-value increases by 3 units the y value decreases by 2 units.

• The graph of the function contains the points (3,4), and (6,2), (-3,8)

• The graph of the function contains the points and (6,2), (3,8), (9,12).

Which equation describes a line with a slope of –4 and y-intercept of –3?

• y = -4x - 3

• x = -4y - 3

• y = -3x - 4

• x = –3y – 4

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Which employee drove at the slowest rate to the convention?

• Mr. Able

• Ms. Ruiz

• Ms. Woo

• Mr. Hill

Tags

CCSS.8.EE.B.5

In slope intercept form, y = mx + b, what does b represent?

• slope

• y intercept

• x intercept

• x

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Identify the y-intercept of the graph.

• (0, 3)

• (-1, 0)

• (0, -1)

• (3, 0)

Why will these graphs never cross?

• They have the same y-intercept.

• They have the same slope.

• They are both lines.

• They are both positive slopes.

Tags

CCSS.8.EE.B.5

Identify the graph with a x-intercept of 3 and a y-intercept of - 1

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Tags

CCSS.HSF-IF.C.7A