Answer: b
explanation: only choice B equals -9 like the given equation.
Answer:
i don't know the answer BUT you can go to khan academy or tutor.com. Both can help :) good luck btw
Step-by-step explanation:
The two is in the tenths place.
Yes, I think the answer is y = 7. The line x = 4 runs vertical (because all of the points in that line have an x-value of 4) so any line that is perpendicular to it has to be horizontal. Any line that is horizontal is in the form y = (some number). In order for the new line to run through the point (5,7) it would have to have the same y-value as that point, which is 7. So the new line is y = 7. Hope this helps :) (P.S. try graphing them both if you need a visual.)