Pre-Algebra Examples

$15 + 0.2 x$

Step 1

Write $15 + 0.2 x$ as an equation.

$y = 15 + 0.2 x$

Step 2

Rewrite in slope-intercept form.

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Step 2.1

The slope-intercept form is $y = m x + b$ , where $m$ is the slope and $b$ is the y-intercept.

$y = m x + b$

Step 2.2

Reorder $15$ and $0.2 x$ .

$y = 0.2 x + 15$

Step 3

Use the slope-intercept form to find the slope and y-intercept.

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Step 3.1

Find the values of $m$ and $b$ using the form $y = m x + b$ .

$m = 0.2$

$b = 15$

Step 3.2

The slope of the line is the value of $m$ , and the y-intercept is the value of $b$ .

Slope: $0.2$

y-intercept: $(0, 15)$

Slope: $0.2$

y-intercept: $(0, 15)$

Step 4