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Find b and c so that y=6x²+bx+c has vertex (-5,-4).

User Fengson
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1 Answer

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Final answer:

To find the values of b and c in the quadratic function y = 6x² + bx + c given the vertex (-5, -4), we can use the vertex form of the quadratic function and plug in the values of h, k, and the function. Simplify the equation and solve for b and c.

Step-by-step explanation:

To find the values of b and c, we can use the fact that the vertex of the quadratic function is given by the formula (h, k), where h is the x-coordinate of the vertex and k is the y-coordinate of the vertex.

In this case, the vertex is (-5, -4). So we have h = -5 and k = -4.

Now, the vertex form of a quadratic function is y = a(x - h)^2 + k. Plugging in the values for h, k, and the given quadratic function, we get:

y = 6x^2 + bx + c

-4 = 6(-5)^2 + b(-5) + c

Simplifying the equation, we have -4 = 150 - 5b + c.

From here, we can solve the equation to find the values of b and c.

User Maen
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