Getting Ready for Calculus

In the equation y=mx+b,
what does m represent?

• Nothing in particular
• The y-intercept
• The x-intercept
• Slope

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Name the slope

• 3
• Zero slope
• Undefined
• 1

Tags

CCSS.8.EE.B.5

Find the slope of the line that passes through:
(-4, 7) and (-6, -4)

• 2/11
• 13/2
• 3/10
• 11/2

Tags

CCSS.8.EE.B.5

Find the slope of the line that passes through:
(5, -10) and (5, -4)

• undefined
• 0
• - 14/10
• 10/14

Tags

CCSS.8.EE.B.5

Which equation matches the graph? (Click me to see the image)

• y = -1/4x + 2

• y = 1/4x + 2

• y = 1x + 4

• y = 4x + 2

Which is the equation of the line with y-intercept -2 and slope 6.

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

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Write the equation of the line with slope 5/2 through the point (8, -2).

• y = 5/2x + 18
• y = 5/2x - 18
• y = 5/2x + 22
• y = 5/2x - 22

Write the equation of the line through the points (8, -7) and (-2, 8).

• y = 3/2x + 11
• y = -3/2x + 11
• y = -3/2x + 5
• y = 3/2x - 19

Data was collected on the weight of a male laboratory rat for the first 25 weeks after its birth. The linear regression equation is y= 40x+100, where x is number of weeks and y is weight in grams. What does the y-intercept mean in context of the problem?

• The predicted weight of the rat in year 0.

• The predicted weight of the rat at birth.

• The current weight of the rat.

• The average increase in the rat's weight.

Tags

CCSS.HSF.LE.B.5

Make a prediction for a resting heart rate after 6 hours of exercise a week.

• 6
• 50
• 55
• 59