Find f(7). f(x)=x^2+9
Find b(-2)-a(12). a(x)=13x-2;b(x)=8x-14
2 answers:
Answer:
Step-by-step explanation:
f(7). f(x)=x^2+9
Put x = 7 in the equation
f(7) = 7^2 + 9 =58
Find b(-2)-a(12)
b(-2)=8x-14= -16-14=-30
a(x)=13x-2
a(12) =13×12 -2= 154
b(-2)-a(12) = -30-154
= -124
Answer:
f(7)=58
b(-2)-a(12)=-188
Step-by-step explanation:
f(7)=(7)^2+9
49+9
f(7)= 58
b(-2)-a(12)=8(-2)-14-13(12)-2
-16-14-156-2
=-188
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