Question

Find four points contained in the inverse. Express your values as an integer or simplified fraction.

Answer 1

Answer: (0, 1/2), (1, 1/4), (2, 0), (3, -1/4)

Proof:

To find the inverse function, swap x and y

x = -4y + 2

Then solve for y

y = -x/4 + 1/2

Now we can plug in any 4 inputs. 0, 1, 2, and 3 are easy

-(0)/4 + 1/2 = 1/2

-(1)/4 + 1/2 = 1/4

-(2)/4 + 1/2 = 0

-(3)/4 + 1/2 = -1/4

Then combine the x and y values into coordinate pairs

(0, 1/2), (1, 1/4), (2, 0), (3, -1/4)