Question

Y=-x+9; (-9, ),(1, ),(5, )

Answer 1

Answer: (-9,18) , (1,8) and (5,4)

Explanation:

If the x coordinate is -9 then plot it into the equation and solve for y.

y = -1(-9) + 0

y = 9 + 9

y = 18

Same for the second one plot in the value of x and solve for y

y= -1(1) + 9

y = -1 + 9

y = 8

Again same for the last one

y = -1(5) + 9

y = -5 + 9

y = 4