Question

25 POINTS! Plz help me!

Answer 1

2nd option

Explanation:

The standard form of an exponential function is

y = a
`b^(x)`

Use points on the graph to find a and b

Using (0, 5 ) , then

5 = a
`b^(0)` = a

Then

y = 5
`b^(x)`

Using (1, 2 )

2 = 5
`b^(1)` = 5b ( divide both sides by 5 )

`(2)/(5)` = b

Thus

f(x) = 5
`((2)/(5)) ^(x)` ← equation of graph