Question

I need a answer fast thanks!

Answer 1

1) 11

2) 3

3) -3

4) -12

Explanation:

eq(1):

`y = (-2)/(3) x + 7\\\\y - 7 = (-2)/(3) x\\\\x = (y - 7)(-3)/(2) \\\\x = (7-y)(3)/(2) ---eq(2)`

1) x = -6

sub in eq(1)

`y = (-2)/(3) (-6) + 7\\\\y = (12)/(3) + 7\\\\y = 4+7\\\\y = 11`

2) y = 5

sub in eq(2)

`x = (7-5)(3)/(2) \\\\x = 3`

3) x = 15

sub in eq(1)

`y = (-2)/(3) 15 + 7\\\\y = (-30)/(3) +7\\\\y = -10 + 7\\\\y = -3`

4)

sub in eq(2)

`x = (7-15)(3)/(2) \\\\x = -8(3)/(2)\\ \\x = -12`

Answer 2

Chart:

x y

-6 11

3 5

15 -3

-12 15

Explanation:

The only things you can plug in are the domain {-12, -6, 3, 15}

Plug in the domain into equation to find y.

-6 :

y = -2/3 (-6) +7

y = +47

y=11

(-6,11)

3:

y = -2/3 (3) +7

y = -2 +7

y = 5

(3, 5)

15:

y = -2/3 (15) +7

y = -10 +7

y = -3

(15 , -3)

-12:

y = -2/3 (-12) +7

y = 8 + 7

y= 15

(-12,15)