Respuesta :

I assume your equation is
[tex]f(x)=-32(2)^{x-3}+3[/tex]

x intercept is where the line crosses the x axis or where y=0
set y=f(x)=0 and solve

[tex]0=-32(2)^{x-3}+3[/tex]
minus 3 both sides
[tex]-3=-32(2)^{x-3}[/tex]
divide both sides by -32
[tex] \frac{3}{32} =2^{x-3}[/tex]
take the ln of both sides
[tex] ln(\frac{3}{32}) =(x-3)ln(2)[/tex]
[tex] ln(\frac{3}{32}) =xln(2)-3ln(2)[/tex]
add 3ln(2) to both sides
[tex] ln(\frac{3}{32})+3ln(2) =xln(2)[/tex]
divide both sides by ln(2)
[tex] \frac{ln(\frac{3}{32})+3ln(2)}{ln(2)} =x[/tex]
[tex] \frac{ln(\frac{3}{4})}{ln(2)} =x[/tex]

the x intercept is at [tex] x= \frac{ln(\frac{3}{32})+3ln(2)}{ln(2)} [/tex]
or aprox at x=-0.415037

We want to get the y-intercept of the given function, we will see that it is y = 7.

So we have the exponential function:

[tex]y = f(x) = 32*(2)^{x - 3} + 3[/tex]

We want to get the y-intercept, it is just given by evaluating the function in x = 0, by doing that, we will get:

[tex]y = f(0) = 32*(2)^{0 - 3} + 3 = 7[/tex]

So the y-intercept of the given function is y = 7.

If you want to learn more about function's intercepts, you can read:

https://brainly.com/question/1354826