State weather the following represents exponential growth, decay or neither.
40 easy

  Exponential growth

Step-by-step explanation:

The base of the exponential term is 1.12, a number greater than 1. That means each increment of x causes the value to be multiplied by 1.12, resulting in a value larger than before. This is growth.

The equation represents exponential growth.

x = -2

y = 848

step-by-step explanation:

plug in the numbers

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18