Question

What is the y-intercept of the function f(x) = -3x
Ο
Ο
on who wire on
Ο
Ο

Answer 1

Answer:

see the explanation

Step-by-step explanation:

we know that

The y-intercept is the value of the function when the value of x is equal to zero. Also is called the initial value of the function

I will analyze two cases

Part 1) we have

$f(x)=-3x$

so

For x=0

substitute

$f(0)=-3(0)=0$

therefore

The y-intercept is the point (0,0)

Part 2) we have

$f(x)=-3^x$

so

For x=0

substitute

$f(0)=-3^0=-1$

therefore

The y-intercept is the point (0,-1)