Writing Linear Equations from Descriptions and Graphs

What does the 'm' represent in the slope-intercept form equation y = mx + b?

• The y-intercept

• The slope

• The x-intercept

• The constant term

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

In the standard form of a linear equation, what does the equation look like?

• y - y1 = m(x - x1)

• ax + by = c

• x = a number

• y = mx + b

Given a point (2, 3) and a slope of -3/4, which form is best to write the equation?

• Point-slope form

• Standard form

• Slope-intercept form

• Vertical line form

What is the equation of a line passing through (0, -5) with a slope of 2?

• y = 2x - 5

• y = -5x + 2

• y = 2x + 5

• y = -2x - 5

If a graph shows a line with a slope of -1 and a y-intercept of 2, what is the equation?

• y = -x + 2

• y = x - 2

• y = x + 2

• y = -2x + 1

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

When given a graph, what should you identify to write the equation of the line?

• The rate of change and any points

• The slope only

• The x-intercept only

• The y-intercept only

Using the points (-3, 4) and (3, 7) from a graph, what is the slope?

• 1/3

• 3/4

• 2/3

• 1/2

Tags

CCSS.8.EE.B.5

What is the equation of a line passing through (-5, 3) and (4, -2) with a slope of -5/9?

• y + 3 = -5/9(x - 5)

• y - 3 = -5/9(x + 5)

• y - 2 = -5/9(x + 4)

• y + 2 = -5/9(x - 4)

What is the slope of a horizontal line passing through the points (5, 4) and (8, 4)?

• 1

• -1

• 0

• Undefined

Tags

CCSS.8.EE.B.5

What is the equation of a horizontal line passing through (0, 4)?

• x = 0

• x = 4

• y = 0

• y = 4