Graphing a Line from Slope Intercept Form

What is the slope of the line? (pay attention to the direction of the slope or in what direction you move for the sign of the slope!)

• -2

• 2

• -1

• 1

Why do we want to think of slope as a fraction?

• rise/run or change in y over change in x

• run/rise or change in x over change in y

• Fractions make things better

• Because running makes the problem go faster!

When graphing from slope-intercept form ( y = mx +b), first you graph the ______ value on the ________________.

• m value on the y-axis

• m value on the x-axis

• b value on the y-axis

• b value on the x-axis

When graphing, what do you do after you graph your y-intercept?

• Find slope and move the run(left or right) then move the rise (up or down)

• Find slope and move the rise (up or down) then move the run (left or right)

• Draw a vertical line

• Draw a horizontal line

Which could be the graph of the equation y = 1/3x - 2?

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Which could be the graph of the equation y = 2/3x - 4?

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Which is the graph of the equation y = -2x + 1?

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What letter represents slope in the slope-intercept form (y=mx+b)?

What letter represents the y-intercept in the slope-intercept form (y=mx+b)?

What is the order of the steps in graphing a slope-intercept equation?

• 1. Plot the y-intercept

  2. Use the slope to plot two more points

  3. Connect the dots to make a line

• 1. Plot the slope

  2. Add two points using the y-intercept

  3. Connect the dots to make a line

• 1. Start with the slope.

  2. Add the y-intercept.

  3. Make a line

• 1. Move with m

  2. Begin with b

  3. Leave with a line