SOLUTION: y=(x=4)^2-1 need the vertex 2 x intercepts and 1 y intercept and the axis of symmetry. and have to graph it

Question 737693: y=(x=4)^2-1 need the vertex 2 x intercepts and 1 y intercept and the axis of symmetry. and have to graph it
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
You mistyped your equation. The characters on the same key being "=" and "+", you must mean to write .

That parabola equation is already in standard form, allowing you to read enough information to begin sketching its graph. The vertex is (-4,-1), and the vertex is a minimum (as we know based on the sign of the coefficienton the square term being positive 1). Let y=0 and solve for x to find the x intercepts:

or
or as x intercepts.
but you could choose a couple other points to help get a better sense of the size of the parabola.
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