Fall Semester Exam Review (All Questions)

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each x-value has only one y-value paired with it.
• No, because the x-value 11 has two y-values pair with it.
• No, because each x-value has only one y-value paired with it.

Is this set of ordered pairs a function or not a function? 

• Function
• Not a Function 

Identify the slope and Y intercept of the equation 4x+2y=10

(Change to slope intercept form)

• Slope=4, Y-intercept=10

• Slope=2, Y-intercept=5

• slope=-2, Y-intercept=5

• Slope=10, Y-intercept=2

Given the line 2x-3y=9, write the equation of a line parallel to it that passes through the point (4, -1)

• y = 2/3x - 3
• y = 2/3x - 11/3
• y = 2/3x - 4
• y = 2/3x - 5/3

-4x-2y=-12
4x+8y=-24

• (5,6)
• (6,-6)
• (6,-2)
• (4,-3)

Solve for x:
2(3x + 4) + 2 = 4 + 3x

• 2
• -2/3
• 10
• -2

Solve D=IRT for R.

• R = D/IT
• R = IT/D
• R = D - IT
• R = IT - D

What is the range of the mapping shown?

• {-4, -1, 0, 2, 7}
• -4 ≤ x ≤ 7
• {-5, 0, 1, 2, 4}
• -5 ≤ y ≤ 4

Does the table represent a function?

• yes, because the y-values repeat
• Yes, because the x-values don't repeat
• No, because the y-values repeat
• No, because the x-values don't repea

• all real numbers

• {0,1,2,3,4}

• {0,2,3,4}

• {-1, -2, 3, 7}