Precalculus Midterm

Solve for slope-intercept form for the following questions: (2,7); m=-4

• y=4x-15

• y=2/3x-4

• y=-4x+15

• y=3x+15

(4,-5); m=6

• y=3x-14

• y=6x-29

• y=6x+29

• y=4x-32

(-6,-2); m=3

• y=-3x 18

• y=3x+20

• y=6x-21

• y=3x+16

Write an equation that is parallel to the line y = x - 5 through (1, -2)

• y = -3x +1

• y = x - 3

• y = x + 1

• y = 3x +1

Write an equation for a line parallel to the line y = 1/3x - 4 through (-3, 2)

• y = 2/3x +3

• y = -1/3x + 3

• y = 1/3x + 3

• y = -5/3x + 3

Write an equation of a line perpendicular to y = 7x +1 through (-4, 0)

• y = 1/7x - 4/7

• y = -1/7x - 4/7

• y = 2/7x - 4/7

• y = -4/7x + 2/7

Write an equation of a line perpendicular to y = 2x + 3 through (-2, 4)

• y = -3/2x + 3

• y = 3/2x + 3

• y = -1/2x + 3

• y = 3x - 3/2

Is this table a function or not a function? 

• Function

• Not a Function

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.

Solve

• 2a

• 2a-h

• 2a+h

• 2h