2004pandre 2004pandre

26-03-2020
Mathematics

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Here is a sketch of y=x^2+bx+c
REST IN IMAGE

Here is a sketch of yx2bxc REST IN IMAGE class=

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amna04352 amna04352

26-03-2020

Answer:

The x-coordinate of the turning points is -2.5

Step-by-step explanation:

-14 = 0 + 0 + c

c = -14

0 = 2² + 2(b) -14

2b -14 + 4 = 0

2b = 10

b = 5

Turning point:

y = x² + 5x - 14

dy/dx = 2x + 5 = 0

2x + 5 = 0

x = -5/2 = -2.5

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