Question

Solve for y. Then find the values of y that correspond

to the given values of x for the linear function.
7. y + 8x = -2 for x = 0, 1,2-2,
8. 12x + 3y = 15 for x = -1, 0, 1
y - 3x = 9 for x = -2,0, 2
10. 0.4y + 2x = 1.2 for x = -3,0,

Answer 1

7.

y + 8x = -2

f(x) = y = -8x - 2

f(0)=-2, f(1)=-10, f(2)=-18, f(-2)=14

8.

12x + 3y = 15

3y = -12x + 15

f(x) = y = -4x + 5

f(-1)=9, f(0)=5, f(1)=1

9.

y - 3x = 9

f(x) = y = 3x + 9

f(-2)=3, f(0)=9, f(2)=15

10.

0.4y + 2x = 1.2

4y + 20x = 12

4y = -20x + 12

f(x) = y = -5x + 3

f(-3) = 18, f(0)=3