How do you graph the function $y=-2x$ ?

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Answer 1 · 2018-06-27T12:47:42

See a solution process below:

To graph a linear equation first solve for two points which solve the equation and plot these points:

First Point: For $x = 0$

$y = -2 xx 0$

$y = 0$ or $(0, 0)$

Second Point: For $x = 2$

$y = -2 xx 2$

$y = -4$ or $(2, -4)$

We can next plot the two points on the coordinate plane:

graph{(x^2+y^2-0.04)((x-2)^2+(y+4)^2-0.045)=0 [-10, 10, -5, 5]}

Now, we can draw a straight line through the two points to graph the line:

graph{(y + 2x)(x^2+y^2-0.04)((x-2)^2+(y+4)^2-0.045)=0 [-10, 10, -5, 5]}

How do you graph the function y=-2xy=-2x?