Step-by-step explanation:
First, sub in the ordered pair to find y int
(7) = -1(-2) + b
7 = 2 + b
b = 5
So the equation in y int form is
y = -1x + 5
This when convert to stardard form is
x + y = 5
Answer:
12
Step-by-step explanation:
Let's look at the following exponent rule below:

We can apply this rule to the problem given to help us find the final answer by taking each exponent and <em>subtracting them</em>. Let's illustrate this below:


Hopefully this was helpful! Let me know if you have any more questions.
1 & 3 are not functions and 2 & 4 are functions ;)