Step-by-step explanation:
y — yı = m(x – xı) equation of a line
Points A(1,3) and B(2,1)
Slope (m) = (y2 – y1) / (x2 – x1)
(1 –3) / (2 – 1)
–2/1
–2
Thus, y –3 = –2 (x – 1)
y – 3 = –2x + 2
y –3 + 3 = –2x + 2 + 3
y = –2x + 5
Answer:

Step-by-step explanation:
![\sf = 49y^2+42y+9\\\\=(7y)^2+2(7y)(3)+(3)^2\\\\Using \ Formula \ a^2+2ab+b^2 = (a+b)^2\\\\= (7y+3)^2\\\\= (7y+3)(7y+3)\\\\\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Csf%20%3D%2049y%5E2%2B42y%2B9%5C%5C%5C%5C%3D%287y%29%5E2%2B2%287y%29%283%29%2B%283%29%5E2%5C%5C%5C%5CUsing%20%5C%20Formula%20%5C%20a%5E2%2B2ab%2Bb%5E2%20%3D%20%28a%2Bb%29%5E2%5C%5C%5C%5C%3D%20%287y%2B3%29%5E2%5C%5C%5C%5C%3D%20%287y%2B3%29%287y%2B3%29%5C%5C%5C%5C%5Crule%5B225%5D%7B225%7D%7B2%7D)
Hope this helped!
<h3>~AH1807</h3>
X=2 or -7(answer choice A)
Answer:
the answer is B :)
Step-by-step explanation:
X ・y^5
x times y to the fifth