Sagot :
Answer:
1. f(x) = 2x - 8 if x = 5
f(x)= 2x-8
f(5)= 2(5)-8
f(5)= 10-8
f(5)= 2
2. f(x) = 4x +3 if x = 4
f(x)= 4x+3
f(4)= 4(4)+3
f(4)= 16+3
f(4)= 19
3. f(x) = 8x - 3 if x = 2
f(x)= 8x-3
f(3)= 8(3)-3
f(3)= 24-3
f(3)= 21
4. f(x) = 6x + 5 if x = 3
f(x)= 6x+5
f(3)= 6(3)+5
f(3)= 18+5
f(3)= 23
5. f(x) = 10x - 4 if x = 6
f(x)= 10x-4
f(6)= 10(6)-4
f(6)= 60-4
f(6)= 56