All you have to do is substitute the x with the value given then input it in your calculator. Double check my answers just to be sure.
1. When f (x) = -7x+2, find f (5)
f(5) = -7(5) + 2
f(5) = -35+2
f(5) = -33
2. When f (x) = x³ + x² + 30x +22, find f(25)
f(25) = (25)³ + (25)² + 30(25) +22
f(25) = 17022
3. When f (x) = √x + 22x² +24, find f (4)
f(4) = 378
4. When f (x) = x² + 24x, find f(√2)
f(√2) = 2+24√2 = 35.94
5. When f (x) = 2x³ + x² - 22x + 8, find f (10)
= 1888
6. When f (x) = x5 + 3x ³-24x -28, find f (2)
= -20
7. When f (x) = x² + 2x +1, fid f (32)
=1089
8. When f (x) = 16x³ + 18x² +15x, find f (18)
=99414
9. When f (x) = x² +325x, find f (√3)
= 565.92
10.When f (x) =25x³ +2x² +3x +2, find f (2)
=216
11. When f (x) = 50x -25, find f (2)
=75
12. When f (x) = 2x² +38x +5, find f (√2)
=62.74
13.When f (x) = 9x² +124x -2, find f (6)
=1066
14.When f (x) = x³ + x² + x, find f (9)
=819
15.When f (x) = x³ + x² + x, find f (-3)
= -21
16. When f (x) = 25x +26, find f (10)
= 276
17.When f (x) = 2x5 +3x4 -4x³ -6x, find f (2)
= 68
18.When f (x) = 9x² -3x +22, find f (3)
= 94
19.When f (x) = 6x² + 7x +2, find f (7)
= 345
