CCSS.Math.Content.8.F.B.4

If m=3 and b=6, what is the correct slope intercept equation?

• y=3-6
• y=3x-6
• y=3x+6
• y=6x+3

Tags

CCSS.Math.Content.8.F.B.4

Given the recursive formula, find the first four terms:
a_n = a_n-1 + 5
a₁ = -16

• -16, -21, -26, -31
• 5, -11, -27, -43
• -16, -80, -500, -200
• -16, -11, -6, -1

Tags

CCSS.Math.Content.8.F.B.4

Find the equation of the line that passes through the points:

(3, 4) and (0, -5)

• y = 3x + 5
• y = -3x + 4
• y = -3x + 4
• y = 3x - 5

Tags

CCSS.Math.Content.8.F.B.4

Which graph is linear?

• Graph A
• Graph B
• Graph C
• Graph D

Tags

CCSS.Math.Content.8.F.B.4

which of the following is a linear graph?

• 
• 
• 
• 

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CCSS.Math.Content.8.F.B.4

Ounces of medication vary directly with the weight of the patient. If a 120-pound adult requires 3 ounces of a medication, how many ounces would be needed for a 200-pound adult?

• 2

• 3

• 5

• 9

Tags

CCSS.Math.Content.8.F.B.4

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.Math.Content.8.F.B.4

Compare the function (red) to the parent function (black).

• Vertical Translation Up 8 units

• Vertical Translation Down 8 units

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CCSS.Math.Content.8.F.B.4

Using the Slope Formula

 $\frac{y_2-y_1}{x_2-x_1}\ \ \ \left(x_1,\ y_1\right)\left(x_2,\ y_2\right)$  
Find the slope of the line that passes through these two points:
 $\left(-1,\ -3\right)\left(0,\ 0\right)$  

•  $3$  

•  $\frac{1}{3}$  
  

•  $\frac{2}{3}$  
  

•  $1$  

Tags

CCSS.Math.Content.8.F.B.4

Using the Slope Formula

 $\frac{y_2-y_1}{x_2-x_1}\ \ \ \left(x_1,\ y_1\right)\left(x_2,\ y_2\right)$  
Find the slope of the line that passes through these two points:
 $\left(-4,\ -4\right)\left(4,\ -1\right)$  

•  $\frac{8}{3}$  
  

•  $\frac{1}{2}$  
  

•  $\frac{3}{7}$  

•  $\frac{3}{8}$  
  

Tags

CCSS.Math.Content.8.F.B.4