Algebra Examples

$y = \frac{4}{5} x$

Substitute $- 2$ for $x$ and find the result for $y$ .

$y = \frac{4}{5} \cdot (- 2)$

Solve the equation for $y$ .

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Multiply $\frac{4}{5}$ by $- 2$ .

$y = \frac{4}{5} \cdot - 2$

Simplify $\frac{4}{5} \cdot - 2$ .

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Multiply $\frac{4}{5} \cdot - 2$ .

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Combine $\frac{4}{5}$ and $- 2$ .

$y = \frac{4 \cdot - 2}{5}$

Multiply $4$ by $- 2$ .

$y = \frac{- 8}{5}$

Move the negative in front of the fraction.

$y = - \frac{8}{5}$

Substitute $- 1$ for $x$ and find the result for $y$ .

$y = \frac{4}{5} \cdot (- 1)$

Solve the equation for $y$ .

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Multiply $\frac{4}{5}$ by $- 1$ .

$y = \frac{4}{5} \cdot - 1$

Simplify $\frac{4}{5} \cdot - 1$ .

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Multiply $\frac{4}{5} \cdot - 1$ .

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Combine $\frac{4}{5}$ and $- 1$ .

$y = \frac{4 \cdot - 1}{5}$

Multiply $4$ by $- 1$ .

$y = \frac{- 4}{5}$

Move the negative in front of the fraction.

$y = - \frac{4}{5}$

Substitute $0$ for $x$ and find the result for $y$ .

$y = \frac{4}{5} \cdot (0)$

Solve the equation for $y$ .

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Multiply $\frac{4}{5}$ by $0$ .

$y = \frac{4}{5} \cdot 0$

Remove parentheses.

$y = \frac{4}{5} \cdot (0)$

Multiply $\frac{4}{5}$ by $0$ .

$y = 0$

Substitute $1$ for $x$ and find the result for $y$ .

$y = \frac{4}{5} \cdot (1)$

Solve the equation for $y$ .

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Multiply $\frac{4}{5}$ by $1$ .

$y = \frac{4}{5} \cdot 1$

Remove parentheses.

$y = \frac{4}{5} \cdot (1)$

Multiply $\frac{4}{5}$ by $1$ .

$y = \frac{4}{5}$

Substitute $2$ for $x$ and find the result for $y$ .

$y = \frac{4}{5} \cdot (2)$

Solve the equation for $y$ .

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Multiply $\frac{4}{5}$ by $2$ .

$y = \frac{4}{5} \cdot 2$

Remove parentheses.

$y = \frac{4}{5} \cdot (2)$

Multiply $\frac{4}{5} (2)$ .

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Combine $\frac{4}{5}$ and $2$ .

$y = \frac{4 \cdot 2}{5}$

Multiply $4$ by $2$ .

$y = \frac{8}{5}$

This is a table of possible values to use when graphing the equation.

$\begin{array}{c} x & y \\ - 2 & - \frac{8}{5} \\ - 1 & - \frac{4}{5} \\ 0 & 0 \\ 1 & \frac{4}{5} \\ 2 & \frac{8}{5} \end{array}$