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dyanaycooper13
05.02.2020 •
Mathematics
Find the solution to the system of equations.
−7x−2y=14
6x+6y=18
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Ответ:
x= -4
y= 7
Step-by-step explanation:
"multiply the top equation by 3, then both y's are cancelled or zeroed out. You add -21 and 6 to get -15x. Than you add 42 and 18 to get 60. So, -15x=60 and from there you do 60/-15 to get x=-4. Plug in what you got for x into any of the two equations to get y, which is 7"
Ответ:
With the given the h is going to be 2 and the k will be 8 giving you the vertex of (2,8) or, in this case, the turning point of this graph.
The way you get a positive 2 for h is because in the formula you have an (x-h) and since the h=-2 anytime you have a number (x) subtracted by a negative number, (--2) the negatives cancel out leaving a positive 2
So you're answer is (2,8)