Linear Equations I

Hong Kong

Stage 4 - Stage 5

What is the gradient of the line $10x+9y-7=0$10`x`+9`y`−7=0?

$\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`=−`x`−10 in general form.

Express $y-x=2$`y`−`x`=2 in general form.

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