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Graph 8x - 4y = 16, then find its x-intercept & y-intercept.

User Hesam
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1 Answer

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The y-intercept of an equation is where its graph intersects the y-axis - this happens at x = 0; therefore, putting in x =0 should give us the y-intercept.

Putting in x = 0 gives


8(0)-4y=16
\rightarrow-4y=16


\therefore y=-4.

Hence, the y-intercept is y = -4.

The x-intercept of an equation is where its graph intersects the x-axis - this happens where y = 0; therefore, the x-intercept is found by putting in y =0:


8x-4(0)=16
\rightarrow8x=16
\therefore x=2.

Hence, the x-intercept is x = 2.

The graph is attached below.

Graph 8x - 4y = 16, then find its x-intercept & y-intercept.-example-1
User Raskayu
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