Lesson 9 - Graphing Lines Review

Front

What does 'b' represent in the equation y=mx+b?

Back

y-intercept

Front

Find the slope of the line using rise/run if the rise is 2 and the run is 3.

Back

Front

What does the point (2, 94) represent in a payment plan context?

Back

After 2 weeks, they save $94.

Front

How long does it take Erin to pay off the TV according to the graph?

Back

6 weeks

Front

What was the original cost of the TV in Erin's payment plan?

Back

$150

Front

What is the slope (m) in the equation y=mx+b?

Back

The slope indicates the steepness of the line.

Front

How do you calculate the slope between two points (x1, y1) and (x2, y2)?

Back

Front

What does a positive slope indicate about a line?

Back

The line rises from left to right.

Front

What does a negative slope indicate about a line?

Back

The line falls from left to right.

Front

What is the formula for finding the y-intercept of a line?

Back

Set x=0 in the equation y=mx+b.