Y=-2/7x+29/7 is your answer. Hope this helps :)
N²+20n+100 = (n+10)(n+10)
Yes is it a perfect square trinomial
x^2 in the function that you typed is x * x ( x multiplied by x). It represents a second degree because there are only 2 "x"s multiplied together. If there were 3 "x"s multiplied together, we would have x^3. Since the highest exponent in this function is 2 (in x^2), we call this function a 2nd degree polynomial.
The answer can be 90+90. 60 +120 ....and so on and so forth
