Basic Slope-Intercept Form

What does the "m" represent in a slope-intercept form equation (y= mx + b)?

• m = y-intercept

• m = slope

• m = y

• m = x

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What does "b" represent in the slope-intercept equation (y = mx + b)?

• b = the slope

• b = the x-intercept

• b = the y-intercept

• b = barometer

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

How do you find the slope when given two points on a line?

• m = rise/run

• plug in a zero for y and solve for x

• plug in a zero for x and solve for y

Tags

CCSS.8.EE.B.5

How do you find the y-intercept when you know the slope and at least ONE point on the line?

• you use the quadratic formula

• you use slope-intercept for equation and plug in the y-coordinate, x-coordinate, and the slope and then solve for b.

• you use standard form equation and plug in a, b, and c.

• you cannot find the equation of a line with that information

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the slope of a line that passes through the points (-1, 5) and (2, 3)

• m = 2/3

• m = -2/3

• m = 3/2

• m = 3

Tags

CCSS.8.EE.B.5

What is the y-intercept of a line that passes through the point (-2, -3) and has a slope m = 1/2 ?

• b = 2

• b = 3

• b = -2

• b = 5

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the equation for a line that has a slope m = 5 and a y-intercept of -2.

• y = 5x + 2

• y = -5x -2

• y = 5x - 2

• y = 2/5x + 2

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Which equation is in Slope Intercept Form?

• y = 3x + 2

• 3x + 2y = 5

• 2y = ⅓x + 10

• 5x + 10y = 100

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

• divide by 1

• rewrite it so that the slope is in front of the y-intercept

• rewrite it so that it says -2x plus 9

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

• y = -4x + 72

• y = -2x - 9

• y = 1/2x - 9

• y = 2x + 9

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3