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edual7545
10.10.2019 •
Mathematics
Pl
1) given f(x)=x+4 and g(x)=12x-6, what is f(3)+g(-1)?
a.) 22
b.) 33
c.) -11
d.) 11
2) what is f(x).g(x) if f(x)= 2x+3 and g(x)=4x?
a) 6x+3
b) 6x^2+12
c) 8x^2+12
d) 8x+3
3) f(x)=2x-3 and g(x)=4x what is f(2)-g(3)
a) 15
b) -11
c) -15
d) -5
Solved
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Ответ:
Step-by-step explanation:
1)
f(x) = x + 4
f(3) = 3 + 4 = 7
g(x) = 12x - 6
g(-1) = 12(-1) - 6 = -12 - 6 = -18
f(3) + g(-1) = 7 + (-18) = -11
2)
f(x) = 2x + 3, g(x) = 4x
f(x) · g(x) = (2x + 3)(4x) use the distributive property
f(x) · g(x) = (2x)(4x) + (3)(4x)
f(x) · g(x) = 8x² + 12x
3)
f(x) = 2x - 3
f(2) = 2(2) - 3 = 4 - 3 = 1
g(x) = 4x
g(3) = 4(3) = 12
f(2) - g(3) = 1 - 12 = -11
Ответ:
1) Given f(x)=x+4 and g(x)=12x-6, what is f(3)+g(-1)?
C) -11
2) what is f(x).g(x) if f(x)= 2x+3 and g(x)=4x?
C) 8x^2+12
3) f(x)=2x-3 and g(x)=4x what is f(2)-g(3)
B) -11
Ответ:
1420
Step-by-step explanation:
deltamath gave me the answer