Linear functions review

A climber is on a hike. After 2 hours he is at an altitude of 400 feet. After 6 hours, he is at an altitude of 700 feet. What is the average rate of change? 

• 200
• 150
• 300
• 75

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Given the equation y = 2x + 5 , where x is the number of homework questions and y is the number of minutes it takes to do all the homework, what does the y-intercept of the line mean in real world context.

• For every homework assignment, it takes 5 more minutes to complete.
• For every homework assignment, it takes 2 more minutes to complete.
• It initially takes 5 minutes to get homework out and start working.
• It initially takes 2 minutes to get homework out and start working.

Tags

CCSS.HSF.LE.B.5

Find the slope of the line that passes through
(10, 1) and (5, 2)

• 1/5
• -1/5
• 5
• -5

Tags

CCSS.8.EE.B.5

At what rate did the rain fall?

• 2 cm per hour
• ¹/₄ cm per hour
• ¹/₂ cm per hour
• 4 cm per hour

Tags

CCSS.8.EE.B.5

What does "m" and "b" represent in y= mx + b?

• m = y-intercept           b = slope
• m = slope                        b = y-intercept

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the y intercept ?

• (1,0)
• (0-1)
• -1
• (0,-2)

Tags

CCSS.HSA.REI.D.12

Find the slope of the line.

• 1/2
• -1/2
• 2
• -2

Tags

CCSS.8.EE.B.5

Find the slope of the line.

• -5/4
• 5/4
• -4/5
• 4/5

Tags

CCSS.8.EE.B.5

Find the slope of the line.

• Undefined
• 0
• 1
• -1

Tags

CCSS.8.EE.B.5

Find the slope of the line.

• Undefined
• 0
• 1
• -1

Tags

CCSS.8.EE.B.5