Section B Section B Checkpoint

Problem 1

Select all of the equations that are equivalent to

5x+4y=20

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Solution

A, C, D

The equation

2x-3y=18

represents a relationship between

x

and

y

Solve the equation for $y$ (to put it into slope-intercept form).
What are these values for the equation?
- slope:
- $y$ -intercept: $(\underline{\hspace{.5in}},\underline{\hspace{.5in}})$

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Solution

$y = \frac{2}{3}x - 6, y = \frac{2x-18}{3}$ , or an equivalent equation in which $y$ is isolated.
slope: $\frac{2}{3}$ , intercept: $(0,\text{-}6)$