Equations of Lines Review

Find the slope of the line that passes through

(-4, 7) and (-6, -4)

• 2/11

• -2/11

• 11/2

• -11/2

What does m represent in the formula y = mx + b?

• slope

• y-intercept

• x-intercept

What is the b in the formula y = mx + b?

• slope

• y-intercept

• x-intercept

How can you find slope?

• m = x₂-x₁/y₂-y₁

• m=rise/run

• m=run/rise

• m=y₂-y₁/x₂-x₁

What do you need to write an equation in point-slope form Select ALL options that work?

{ y-y₁=m(x-x₁) }

• 2 points

• 1 point

• slope

• intercepts

What needs to happen to have a function be LINEAR?

• no x values repeat

• passes vertical line test

• constant rate of change

Which is the equation of the line with slope 3 and y-intercept 5.

• y = 3x + 5

• y = 5x + 3

• y = 3/5x

• y = 5/3x

Identify the slope-intercept equation:

• y = 2x - 2

• y = -2x + 2

• y = -2x + 4

• y = 2x + 4

Identify the slope and y intercept in the equation of the line: y = -1/3x + 1

• Slope: 1/3
  y-intercept: 1

• Slope: 1/3
  y-intercept: -1

• Slope: -1/3
  y-intercept: 1

• Slope: -1/3
  y-intercept: 0

Determine the equation of the line that is PERPENDICULAR to the line 3x + 12y = 1 and contains the point (-2, 6).

• y = 4x + 6

• y = 4x + 14

• y = 3x + 12

• y = -1/4x + 11/2