# Equations of lines

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1. Write the equation of the line with slope -6 and y-intercept (0, 9).

2. The number of people infected after t days is P = 200 + 5t - t2. Find the number of days until the number of people infected is 150

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Problem #1

Write the equation of the line with slope -6 and y-intercept (0, 9).

We can use the slope-intercept form and the equation is ...

#### Solution Summary

This shows how to write the equation of a line and use an equation to solve a word problem.

$2.49