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Vitek1552 [10]
3 years ago
10

Let f(x) = 3x + x², find f(4).

Mathematics
2 answers:
xenn [34]3 years ago
4 0
F(4) is equivalent to 28 because when you plug in 4 for the x, you get 28.
ArbitrLikvidat [17]3 years ago
4 0

Answer:

f(4)=28

Step-by-step explanation:

Let f(x) = 3x + x², find f(4).

f(x) is a function such that the value of x at any time gives the value of 3x + x².

So when we are given the value of f(x), we just input the value of x in the equation and solve. Assuming were looking for f(0),

f(0) = 3×0 + 0²= 0

From the question given

Let f(x) = 3x + x², find f(4)

we would put x=4 in 3x + x²

This would give 3×4 + 4²=12+16=28

So f(4) = 3×4 + 4²=12+16=28

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