Algebra and Functions Review

Find the equation of the line that passes through the points:
(-4, -2) and (-3, 5)

• y = ¹/₇ x + 26

• y = 7x + 26

• y = -7x + 26

• y = -7x - 26

Which statement best describe how to graph this line.
y=\frac{2}{3}x\ +4

• Start at the y-intercept of 4 which is (0 , 4) then slope the line by moving up 2 right 3. Then do the slope over and over. 

• Start at the origin (0,0) then slope the line by moving 2 over 3. Then do the slope over and over. 

• Start at the y-intercept of 4 which is (4, 0) then slope the line by moving up 2 left 3. Then do the slope over and over. 

• Start at the y-intercept of 4 which is (0 , 4) then slope the line by moving down 2 over 3. Then do the slope over and over. 

Given f(x) = -4x - 10 and f(x) = 10. Find x

• x = -5

• x = 5

• x = -50

• x = 30

• Yes
• No

• Yes
• No

Is this 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.

If f(x) = 2x + 1, find f(1).

• f(1) = 1

• f(1) = 4

• f(1) = 0

• f(1) = 3

Evaluate f(-2) if f(x) = x + 3

• -1

• 1

• 5

• -5

For the function f(x) = -3(x-1) find f(0).

• 0

• -3

• 3

• -1