How do you graph $y = - 9 x - 4$ $y = -9x - 4$ ?

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Answer 1 · 2017-08-27T01:25:48

See a solution process below:

First, solve for two points which solve the equation and plot these points:

First Point:

For $x = 0$ $x = 0$

$y = (- 9 \cdot 0) - 4$ $y = (-9 * 0) - 4$

$y = 0 - 4$ $y = 0 - 4$

$y = - 4$ $y = -4$ or $(0, - 4)$ $(0, -4)$

Second Point:

For $x = - 1$ $x = -1$

$y = (- 9 \cdot - 1) - 4$ $y = (-9 * -1) - 4$

$y = 9 - 4$ $y = 9 - 4$

$y = 5$ $y = 5$ or $(- 1, 5)$ $(-1, 5)$

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

graph{(x^2+(y+4)^2-0.075)((x+1)^2+(y-5)^2-0.075)=0 [-20, 20, -10, 10]}

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

graph{(y+9x+4)(x^2+(y+4)^2-0.075)((x+1)^2+(y-5)^2-0.075)=0 [-20, 20, -10, 10]}

How do you graph y=−9x−4y = -9x - 4?