Write the function for the graph

(D). f(x) = 3 ·

Step-by-step explanation:

The equation of an exponential function is

f(x) = y =  

For point (0, 3)

3 = a ⇒ a = 3

For point (1, 12)

12 = 3 ⇒ b = 4

f(x) = 3 ·

50.6

step-by-step explanation:

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.