Question

What’s the equation

Answer 1

Answer:

y = 4. $3^{x}$

Step-by-step explanation:

For an exponential function in the form

y = a$b^{x}$

Use ordered pairs from the table to find a and b

Using (0, 4 ), then

4 = a $b^{0}$ ( note $b^{0}$ = 1 ), thus

a = 4

y = 4 $b^{x}$

Using (1, 12 ), then

12 = 4 $b^{1}$ = 4b ( divide both sides by 4 )

b = 3

Thus

y = 4 . $3^{x}$ ← exponential equation