Question

Choose correct y intercept of the exponential function f(x)=8(0.25)^x

Answer 1

( 0 , 8)

Explanation:

The y-intercept is when the graph intersects the y axis, in other words, when x is zero. Hence substitute 0 in for x

f ( x ) = 8
`( 0.25 )^(x)`

f ( 0 ) = 8
`(0.25)^(0)`

Any number to the power zero is one;

f ( 0 ) = 8 * 1

f(0) = 8

The y-intercept is 8.