4c=-40 i don't know this and i need help ill do what i can in return

Mathematics

2 answers:

melamori03 [73]2 years ago

8 0

Answer:

4c=-40

Divide boyh sides by 4

c=-40/4

c=-10

erma4kov [3.2K]2 years ago

7 0

Answer:

c = - 10

Step-by-step explanation:

move all terms containing c to the left all other terms to the right.

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We are given the following quadratic equation

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The x-coordinate of the vertex is given by

$h=-\frac{b}{2a}$

Comparing the given equation with the general form of the quadratic equation, the coefficients are

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The y-coordinate of the vertex is given by

$\begin{gathered} f(x)=2x^2+7x-10 \\ f(-1.75)=2(-1.75)^2+7(-1.75)-10 \\ f(-1.75)=2(3.0625)^{}-12.25-10 \\ f(-1.75)=6.125^{}-12.25-10 \\ f\mleft(-1.75\mright)=-16.13 \end{gathered}$

This means that we have a minimum point.

Therefore, the minimum point of the given quadratic equation is