Question

Explain how you would find x− intercept(s) of a vertical parabola.

Answer 1

Step 1: Find the vertex. Since the equation is in vertex form, the vertex will be at the point (h, k).

Step 2: Find the y-intercept. To find the y-intercept let x = 0 and solve for y.

Step 3: Find the x-intercept(s). To find the x-intercept let y = 0 and solve for x. You can solve for x by using the square root principle or the quadratic formula (if you simplify the problem into the correct form).

Step 4: Graph the parabola using the points found in steps 1 – 3.

Explanation:

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