Graphing Linear Functions

y = 1/2x - 1

• slope: 1/2   y-intercept:  -1 
• slope: 2/1   y-intercept:  -1
• slope: 3   y-intercept:  -3 
• slope: 2  y-intercept:  5 

Y-intercept is where the line ______________.

• begins
• crosses the x-axis 
• crosses the y-axis 
• ends

Which equation matches the graph? 

• y = 2x
• y = 1/4 x + 2
• y = 1x + 4
• y = -2x

Which of these represents slope-intercept form?

• y - y₁ = m(x-x₁)
• Ax + By = C
• y = mx + b

Which is the graph of y= -x + 2?

• A
• B
• C
• D

Solve for y:
y + 2 = 3x

• y = 2x + 3
• y= 3x +2
• y= 3x -2
• y= 6x

Which equation best represents the line on the graph?

• y= 1/2x
• y= -1/2x
• y = 2x
• y = -2x

Which equation represents the graph?

• x = 2
• y = 2
• y = 2x
• y = undefined

Find the x and y intercepts
4x - 5y = 40

• x intercept is 10 
  y intercept is 8
• x intercept is 10
  y intercept is 20
• x intercept is 8
  y intercept is 10
• x intercept is 10
  y intercept is -8

Find the slope of the line.

• Undefined
• 0
• 1/1
• -1/1