(q5) decide if the function is an exponential function. if it is, state the initial value and the base. y=3.1^x

D

Step-by-step explanation:

Exponential equation takes the form    where

a is the initial value ( a ≠ 0), and

b is the base ( b ≠ 1)

The equation given can be written as  . Thus, it is an exponential equation.

So a = 1 and b = 3.1

Thus we can say that the initial value = 1 and the base is 3.3

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

answer:

step-by-step explanation: