$\"\"$

\

Write an algebraic expression for the current situation. $\"\"$

\

$\"\"$

\

The algebraic expression is $\"\"$ . $\"\"$

\

First find the y intercept.

\

The y-intercept is the value of y, when x = 0.

\

$\"\"$ (Substitute x = 0 in original equation)

\

$\"\"$ (Apply multiplication property of zero: $\"\"$ )

\

Apply division property of equality: Divide each side by 20.

\

$\"\"$

\

$\"\"$ (Cancel common terms)

\

$\"\"$ (Divide: $\"\"$ )

\

The y-intercept is 1000, so the graph intersects the y-axis at $\"\"$ . $\"\"$

\

Next find the x-intercept.

\

The x-intercept is the value of x, when y = 0.

\

$\"\"$ (Substitute y = 0 in original equation)

\

$\"\"$ (Apply multiplication property of zero: $\"\"$ )

\

$\"\"$ (Divide each side by 50)

\

$\"\"$ (Cancel common terms)

\

$\"\"$ (Divide: $\"\"$ )

\

The x-intercept is 400, so the graph intersects the x-axis at $\"\"$ . $\"\"$

\

The x-intercept is 400.

\

The y-intercept is 1000.