Algebra 1 Mcgraw Hill

Find f(0) if f(t) = – 2t – 2.

• 2

• -4

• 0

• -2

Tags

CCSS.HSF.IF.A.2

Which equation is linear?

• xy = 60

• 3x – 2y = 5

Tags

CCSS.8.F.A.3

Find the x-intercept of the graph of –5x + 10y = 20.

• -2

• 2

• 4

• -4

Answer explanation

When we intercept the x-axis, y=0.

Find the slope of the line that passes through (0, 2) and (8, 8).

• 8

Tags

CCSS.8.EE.B.5

If a line rises to the right, its slope is _______.

• zero

• positive

• negative

• undefined

Tags

CCSS.8.EE.B.5

What is the slope of a line that is perpendicular to the graph of y = 2x + 5?

• 2

• -2

Answer explanation

The slope of perpendicular lines are opposite reciprocals.

Tags

CCSS.8.EE.B.6

Write an equation in slope-intercept form for the line that passes through (0, 1) and is perpendicular to the line whose equation is y = 2x.

Use a scatter plot to draw a line of fit and then describe the correlation.

• positive

• negative

• no correlation

The scatter plot shows the area of the floor and the price for certain tents. Which equation could be a prediction equation for this set of data?