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Find the x - and y - intercepts of the line. 4x + 3y = 12Y intercept: ( , )X intercept: ( , )

1 Answer

5 votes

Y intercept: ( 0,4)

X intercept: (3 ,0)

1) Let's at first find the y-intercept. Then we need to plug into that x=0. Like this:


\begin{gathered} 4x+3y=12 \\ 4(0)+3y=12 \\ 3y=12 \\ (3y)/(3)=(12)/(3) \\ y=4 \end{gathered}

So the y-intercept is located at (0,4)

2) Now, similarly we can proceed with the same process, this time to find out the x-intercept. Plugging into the equation y=0


\begin{gathered} 4x+3y=12 \\ 4x+3(0)=12 \\ 4x=12 \\ (4x)/(4)=(12)/(4) \\ x=3 \end{gathered}

So we can write out the X intercept as (3,0)

3) Hence, the answers are:

Y intercept: ( 0,4 )

X intercept: (3 ,0 )