Question

The gradient of the line y = x+3y=9​

Answer 1

Answer:

change the expression to y

Step-by-step explanation:

$x + 3y = 9$

$3y = - x + 9$

$y = \frac{ - 1}{3} x + \frac{9}{3}$

the gradient is the coefficient of x,

$- \frac{1}{3}$