Hi there!
First we need to remember the following.

Now substitute both of the formulas.

Work out the parenthesis.

And finally collect terms.

~ Hope this helps you!
n1 || n2 | given
<1 supplements <2 | same side exterior angles supplement eachother
Answer:
y = 3x - 4
Step-by-step explanation:
The line crosses the y-axis at -4. The line goes 3 down and 1 left.
Yes, it does. Because these points do respect the "law" that for each "x" there is only one "y" that corresponds to it
Answer: B
Step-by-step explanation: