Use the function rule f(x)=4x-4x-7. Find each output.
14. f(3)
16. f(-5)
Do you have a typo?
"4x-4x" = 0
They cancel each other out.
To find the output for each input, you need to substitute the given values into the function rule and simplify.
1. For f(3):
Replace x with 3 in the function rule: f(3) = 4(3) - 4(3) - 7.
Now, simplify the expression: f(3) = 12 - 12 - 7.
Finally, calculate the result: f(3) = -7.
2. For f(-5):
Replace x with -5 in the function rule: f(-5) = 4(-5) - 4(-5) - 7.
Again, simplify the expression: f(-5) = -20 - (-20) - 7.
Finally, calculate the result: f(-5) = -20 + 20 - 7 = -7.
Therefore, the outputs for the given function rule are:
14. f(3) = -7.
16. f(-5) = -7.