The function rule is y=2x-1. if the input is 3 what is the output. i need it important someone

The output is 5

Step-by-step explanation:

we have

In this linear equation the input is the variable x and the output is the variable y

so

If the input is 3

That means ------> x=3

substitute the value of x in the equation and find the value of y (output)

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

i belive those are the ones that are under 90 degreese.