How do you graph $x + y = 4$ $x+y=4$ ?

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How do you graph $x + y = 4$ $x+y=4$ ?

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Answer 1 · 2017-09-30T17:13:38

$see explanation$ $"see explanation"$

Explanation:

$one way is to find the intercepts, that is where the$ $"one way is to find the intercepts, that is where the "$
$graph crosses the x and y axes$ $"graph crosses the x and y axes"$

$∙ let x = 0, in the equation for y-intercept$ $• " let x = 0, in the equation for y-intercept"$

$∙ let y = o, in the equation for x-intercept$ $• " let y = o, in the equation for x-intercept"$

$x = 0 \to 0 + y = 4 \Rightarrow y = 4 \leftarrow y-intercept$ $x=0to0+y=4rArry=4larrcolor(red)" y-intercept"$

$y = 0 \to x + 0 = 4 \Rightarrow x = 4 \leftarrow x-intercept$ $y=0tox+0=4rArrx=4larrcolor(red)" x-intercept"$

$plot (0, 4) and (4, 0) and draw a straight line$ $"plot "(0,4)" and "(4,0)" and draw a straight line"$
$through them$ $"through them"$
graph{-x+4 [-10, 10, -5, 5]}

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How do you graph $x + y = 4$ $x+y=4$ ?

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How do you graph $x + y = 4$ $x+y=4$ ?