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Pavel [41]
3 years ago
5

F(x) = -x2 + 3x + 13 Find f(-10)

Mathematics
1 answer:
Gekata [30.6K]3 years ago
5 0
-(-10)2+3(-10)+13
(10)2+3(-10)+13
20+-30+13
f(-10)=3
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The x-intercepts of the quadratic equation are simply it's roots.

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Now, formula for quadratic equation is;

y = ax² + bx + c

Where c is the y intercept.

At y-intercept: (0,1), we have;

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