+1090 F(x) is just function of x. So when we replace f(x) with f(3), we just replace the x in -5/4x + 4 with 3, which will be -5/4(3) + 4. Then we multiply -5/4 by 3(/1) and add 4 to that product to get the answer.
+1090 F(x) is just function of x. So when we replace f(x) with f(3), we just replace the x in -5/4x + 4 with 3, which will be -5/4(3) + 4. Then we multiply -5/4 by 3(/1) and add 4 to that product to get the answer.
