Answer:
It has a slope of 1 with a y-intercept of -4.
Step-by-step explanation:
Since the line is going in its upward direction, its rate of change has to be positive 1. In addition, the y-intercept is 4 because that is where it crosses the y-axes. The x-intercept is -4, not the y-intercept.
Answer:
Substitution Property
Step-by-step explanation:
So we know that:

And we also know that:

And by using a specific property, we get that:

Essentially, we <em>substituted</em> B for A.
So, this is an example of the substitution property, where if two sides/angles are congruent, we can substitute them for each other.
Answer:
-21
Step-by-step explanation:
2-8 × 2-7 = 2-(8×2)-7
= 2-16-7
=-14-7
=-21
You could write this by going 63+42 or add 63 and 42
hope that's what you are looking for ;-)<span />