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Find the slope of 1/2x+1/3y=1

Sagot :

We want to determine the slope of the equation;

[tex]\frac{1}{2}x+\frac{1}{3}y=1[/tex]

We need to express the equation in the slope-intercept form;

[tex]y=mx+c[/tex]

where m is the slope and c is the intercept.

Firstly, let's multiply the equation through by 3;

[tex]\begin{gathered} \frac{1\times3}{2}x+\frac{1\times3}{3}y=1\times3 \\ \frac{3}{2}x+y=3 \end{gathered}[/tex]

Then, let's subtract (3/2)x from both sides;

[tex]\begin{gathered} \frac{3}{2}x-\frac{3}{2}x+y=3-\frac{3}{2}x \\ y=-\frac{3}{2}x+3 \end{gathered}[/tex]

comparing the resulting equation to the slope-intercept form of straight line equation, then the slope is the coefficient of x;

[tex]slope(m)=-\frac{3}{2}[/tex]

The slope of the line is -3/2