Ch. 2 Review

What is an easy way to calculate slope from a graph ?

• Count how many points there are

• count the RISE and RUN

• Multiply everything

What variable represents the slope in the form y=mx+b ?

• y

• x

• m

• b

Solve for y:
5x + y = -10

• y = 5x + 10
• y = -5x - 10
• y = 2
• y = -5

Solve for y:
2x + 2y = 6

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

Solve for y:
7x+ 2y = 20

• y= 7/2x + 10
• y=-7/2x + 10
• y=2/7 x- 10
• y= -2/7x + 10

Name the slope

• 3
• 1
• -1x
• -1

Name the y intercept

• -1
• 7
• -1x
• -7

Name the y intercept

• 4
• -1
• 1
• -4

Name the slope

• 3
• Zero slope
• Undefined
• 1

Name the slope

• Negative
• 0 Slope
• Undefined
• Positive