Respuesta :

cinejames318

all you have to do is plug in the number....

1st sc: y=-30
2nd: x=-1

3rd: x=5
4th: y = 29

learenceiweabudike

Answer:

1. y = -30

2. x = -1

3. x = 5

4. y = 29

Step-by-step explanation:

1. y = -10x

f(x) = 3

y = -10*3

y = -30

2. y = -2x + 1

f(y) = 3

3 = -2x + 1

-2x = 3 - 1

-2x = 2

x = 2\-2

x = -1

3. y = 6x

f(y) = 30

30 = 6x

x = 30\6

x = 5

4. y = 5x + 9

f(x) = 4

y = 5*4 + 9

y = 20 + 9

y = 29