SOLUTION: The vertex of this parabola is at (-3, -1). When the y-value is 0, the x-value is 4. What is the coefficient of the squared term in the parabola's equation?

Question 966396: The vertex of this parabola is at (-3, -1). When the y-value is 0, the x-value is 4. What is the coefficient of the squared term in the parabola's equation?

Found 2 solutions by Fombitz, MathLover1:
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Use the vertex form,

Use the point to solve for ,

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Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
the vertex of this parabola is at (, )
when the y-value is , the x-value is
so, you are given two points that lie on a parabola and we can use them to find equation
since one point is a vertex, use vertex form:
where and

use the y-value is , the x-value is

the coefficient of the squared term in the parabola's equation
and your equation is:

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