Foundations Final Review 3

Which line represents 3x - 2y = 4

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What is the line of best fit for the data in the table?

• y= 1.4x + 7.6

• y = -1.4x + 7.6

• y = 7.6x + 1.4

• y = 7.2x + 15.9

Which equation is graphed here?

• 2x + y = 4

• 2x - y = -4

• x + 2y = 8

• x - 2y = -8

Which is the equation of the line that passes through the points (3, 3) and (2, -7)?

• y = 27x + 10

   

• y = 10x + 27

• y = -10x + 27

• y = 10x - 27

As shown in the table, a person’s target heart rate during exercise changes as the person gets older. Which value represents the correlation coefficient  for the data represented.

• r = -0.999

• r = -0.666

• r = 0.998

• r = 1.503

What is the slope of  the ling of y = 2?

• 2

• 1

• 0

• undefined

Which graph shows the solution of the following system?

x + y = 0

x  - y = 4

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Which value of r represents data with a strong negative linear correlation between two variables?

•  –1.07

   

• -0.89

• -0.14

• 0.92

Which of the following relations represents a function?

• I only

• I and III only

• II and III only

• I, II, and III

Given the function below, find f(-7).

f(x) = x²—2x + 3

 

Mathematical Equivalence

ON