OPEN ENDED Write a quadratic function for which the graph has an axis of symmetry x=38. Summarize your steps.

Short Answer

Expert verified

A quadratic function for which the graph has an axis of symmetryx=38 may be y=4x2+3x+2.

Step by step solution

01

Step 1. Axis of symmetry.

Write the general form of the axis of symmetry.

The general form of the axis of symmetry is given by x=b2a.

02

Step 2. Compare.

Compare the general form of the axis of symmetry to the given expression and write the values of a and b.

b2a=38=324

Therefore,a=4 and b=3.

03

Step 3. Write the quadratic function.

The standard form of a quadratic function is given by y=ax2+bx+c. Substitute the obtained values of a b and any value of c in the standard form.

y=4x2+3x+2

04

Step 4. Summarize steps.

To find the quadratic function from the axis of symmetry,

First, compare a general form of the axis of symmetry to the given expression and write the values of a and b.

Then substitute the obtained values of a,b, and any value of c into the standard form of a quadratic function to find the required quadratic function.

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