Writing Equations in Slope-Intercept Form from Graphs

What is the first step in writing an equation in slope-intercept form from a graph?

• Choose the ordered pairs

• Determine the slope

• Find the y-intercept

• Identify the x-intercept

How do you determine the slope from a graph?

• By using the quadratic formula

• By identifying the x-intercept

• By counting the rise and run

• By finding the y-intercept

Tags

CCSS.8.EE.B.5

What is the slope formula?

• y2 - y1 / x2 - x1

• x2 - x1 / y2 - y1

• y2 + y1 / x2 + x1

• x2 + x1 / y2 + y1

Tags

CCSS.8.EE.B.5

Where do you find the y-intercept on a graph?

• Where the line crosses the x-axis

• At the highest point of the line

• Where the line crosses the y-axis

• At the origin

What is the y-intercept if the line crosses the y-axis at (0, 5)?

• 0

• 5

• 10

• 1

What is the equation of a line with a slope of 3/2 and a y-intercept of 5?

• y = 2/3x + 5

• y = 3/2x + 5

• y = 3/2x - 5

• y = 2/3x - 5

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

If a line is falling to the right, what type of slope does it have?

• Zero

• Undefined

• Negative

• Positive

Tags

CCSS.8.EE.B.5

What is the slope of a line that falls 4 units and runs 6 units?

• -4/6

• 6/4

• -6/4

• 4/6

Tags

CCSS.8.EE.B.5

What is the simplified form of the slope -4/6?

• 3/2

• -3/2

• 2/3

• -2/3

Tags

CCSS.8.EE.B.5

What is the final equation of a line with a slope of -2/3 and a y-intercept of 4?

• y = 2/3x - 4

• y = -2/3x + 4

• y = 2/3x + 4

• y = -2/3x - 4

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3