Question

Graph the equation on the coordinate plane


Y = -2x

Answer 1

This equation has the form y = mx + b. Since b = 0, the y-intercept is (0,0).
The slope, m, is -2.

Plot the point (0,0). Now, with your pencil on that point, move 1 unit to the right and 2 units down. Plot a new point at that location. Draw a straight line thru these 2 points.

Answer 2

See attached image.

Explanation:

In order to graph something you just need to create an evaluation of the function, selecting three values for X and evaluate the function based on that, and you set the points in that coordinates and you draw a straight line that passes over them, in this case we will evaluate 0, 1 and 2:

x y

0 0

1 -2

2 -4

As you can see in the image those are the coordinates of the points and theres the graph of the equation or function.