A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
Which is f(5) for the function -2x2 + 2x - 3?
-107, -63, -43, -37
Solution:
Given, f(x) = -2x2 + 2x - 3
We have to find f(5)
Put the value x = 5 in the given function.
f(5) = -2(5)2 + 2(5) - 3
= -2(25) + 10 - 3
= -50 + 10 - 3
= 10 - 53
= - 43
Therefore, f(5) = -43.
Example:
Which is f(2) for the function 2x2 + 4x - 5?
Solution:
Given, f(x) = 2x2 + 4x - 5
We have to find f(2)
Put the value x = 5 in the given function.
f(2) = 2(2)2 + 4(2) - 5
= 2(4) + 8 - 5
= 8 + 8 - 5
= 16 - 5
= 11
Therefore, f(2) = 11.
Which is f(5) for the function -2x2 + 2x - 3?
Summary:
f(5) for the function -2x2 + 2x - 3 is -43.
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