The graphs of the two linear functions can be seen at the end of the answer.
How to graph linear equations?
To graph linear equations, we first need to find two points that belong to the line, and then we just need to connect them with a line.
A) Here we have:
y - 2x = 0
Isolating y we get:
y = 2x
Now we just evaluate it, I will use x = 0 and x = 1.
for x = 0:
y = 2*0 = 0
Then we have the point (0, 0)
For x = 1:
y = 2*1 = 2
Then we have the point (1, 2)
Now we just need to plot these two points and connect them with a line.
B) We do the same thing than before, evaluate in x = 0 and x = 1
for x = 0:
y = -2*0 = 0
We have the point (0, 0)
For x = 1
y = -2*1 = -2
We have the point (1, -2)
Now that we have all the needed points we can graph both functions, the graphs can be seen below, where the green line is the one from point A, and the blue line is the one from point B.
If you want to learn more about linear functions, you can read:
https://brainly.com/question/4025726
