Answer:
(-9,0)
Explanation:
0 = 10x + 90
-90 = 10x
-90/10 = x
x = -9
(1,100)
how you got the answer the first time you plugged x in as 0 so 10x0= 0 and you added 90 to the 0, so if you plugged in 1 for x, you'd multiple 1 by 10 which would be 10 and added that to 90 you'd get the same answer.
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