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How do you graph #x+y=4# using intercepts?

Answer 1

Isaiah Anthony

Have a look:

First set #x=0# so #y=4#;
then set #y=0# so #x=4#
You can now plot these 2 points:

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Answer 2

Savannah Anderson

To graph the equation (x+y=4) using intercepts:

Find the x-intercept by setting (y = 0) and solving for (x). (x + 0 = 4 \Rightarrow x = 4). So, the x-intercept is (4, 0).
Find the y-intercept by setting (x = 0) and solving for (y). (0 + y = 4 \Rightarrow y = 4). So, the y-intercept is (0, 4).
Plot the x-intercept (4, 0) and the y-intercept (0, 4) on the coordinate plane.
Draw a straight line passing through these two points. This line represents the graph of the equation (x+y=4).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.