# Equation of a line: Ax+By+C=0

## Interactive practice questions

What is the slope of the line $10x+9y-7=0$10x+9y7=0?

$\frac{10}{9}$109

A

$\frac{9}{10}$910

B

$-\frac{9}{10}$910

C

$-\frac{10}{9}$109

D

$\frac{10}{9}$109

A

$\frac{9}{10}$910

B

$-\frac{9}{10}$910

C

$-\frac{10}{9}$109

D
Easy
Less than a minute

Express the following equations in general form.

Express $y=\frac{-x}{-10}$y=x10 in general form.

Express $y-x=2$yx=2 in general form.

### Outcomes

#### 9D.AG1.03

Express the equation of a line in the form y = mx + b, given the form Ax + By + C = 0

#### 9D.AG3.02

Determine the equation of a line from information about the line