fatback7063
30.11.2021 •
Mathematics
If fx) = x2 – 15 and fa) = 49, what is the value of a?
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Ответ:
(-2,3)
Step-by-step explanation:
Doing it the way you did and working out the problem you substituted 3 into, x+3(3)=7, 3(3) is 9 and then you subtract 9 from both sides.
7-9=-2
x=-2
Then all you have to do is put it into ordered pairs.
(x,y)
(-2,3)