Question

Please can someone help me.

Answer 1

4

Explanation:

Answer 2

y = 4
`(2)^(x)`

Explanation:

An exponential function in standard form is

y = a
`b^(x)`

Substitute points from the graph into the equation to find a and b

Using (0, 4 ), then

4 = a
`b^(0)` [
`b^(0)` = 1 ], so

a = 4

y = 4
`b^(x)`

Using (1, 8 ), then

8 = 4
`b^(1)` = 4b ( divide both sides by 4 )

b = 2

y = 4
`(2)^(x)` ← exponential equation