Equation for a Line

What is slope-intercept form of a linear equation?

• y = mx + b

• ax + by = c

• m = rise/run

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

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

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 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 of this line?

What is the equation of this line?

What is the equation of this line?

What is the equation of this line?

What is the slope of this line after it is reduced?

• 2

• -4/2

• -2/2

• 0

Tags

CCSS.8.EE.B.5

What is the slope of this line after it is reduced?

• 2/-4

• -2/-2

• -3

• 6/2

Tags

CCSS.8.EE.B.5