Question

Question 9: Find the slope of the following line: 4x + y = 9

Answer 1

Statement Problem: Find the slope of the following line:

$4x+y=9$

Solution:

The slope-intercept form of the equation of a line is;

$\begin{gathered} y=mx+b \\ \text{Where m=slope} \end{gathered}$

Thus;

$\begin{gathered} 4x+y=9 \\ \text{Subtract 4x from both sides;} \\ 4x-4x+y=9-4x \\ y=-4x+9 \end{gathered}$

Hence, the slope of the line is;

$m=-4$