High School Math : Transformations of Linear Functions

Study concepts, example questions & explanations for High School Math

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Example Questions

Example Question #3 : Linear Functions

Write \(\displaystyle 2x+7y=8\) in slope-intercept form.

Possible Answers:

\(\displaystyle y=\frac{2}{7}x-\frac{8}{7}\)

\(\displaystyle y=\frac{2}{7}x+\frac{8}{7}\)

\(\displaystyle y=\frac{-2}{7}x-\frac{8}{7}\)

\(\displaystyle y=\frac{-2}{7}x+\frac{8}{7}\)

Correct answer:

\(\displaystyle y=\frac{-2}{7}x+\frac{8}{7}\)

Explanation:

Slope-intercept form is \(\displaystyle y=mx+b\).

\(\displaystyle 2x+7y=8\)

\(\displaystyle 7y=-2x+8\)

\(\displaystyle y=\frac{-2}{7}x+\frac{8}{7}\)

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