2.9 PART 1: Writing Equations in y=mx+b

What is the slope of the equation?

y = -3x + 4

(a)  

Tags

CCSS.8.EE.B.5

Which of these represents slope-intercept form?

• y - y₁ = m(x-x₁)

• Ax + By = C

• y = mx + b

• rise/run

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What does "m" represent in y=mx+b?

• y-intercept
• slope
• macaroni
• nothing

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Identify the rate of change in the equation: y=4x+3

(a)  

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Identify the initial value in the following equation: y=-4x-5

(a)  

How would you write the equation with a slope of 2/3 and a y-intercept of -3?

• $y=\frac{3}{2}x+3$

• $y=\frac{2}{3}x-3$
  

• $y=\frac{2}{3}x+3$
  

• $y=-3x+\frac{2}{3}$

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

If m = 1/2 and b = -4, what is the correct equation in slope-intercept form?

• y=1/2x+4

• y=1/2x-4

• y=-4x-1/2

• y=4x+1/2

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Write the equation for the line in slope-intercept form.

• y= -1x+3
• y= 4x+3
• y=1/4x+3
• y= -4x+3

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Write the equation of the line.

• y= -1x-3

• y= -3x-1

• y=-1/3x-1

• y= -3x-3

Which of these lines has a slope of -3?

• A
• B
• C
• D

Tags

CCSS.8.EE.B.5