Question

Find the equation of a straight line that passes through:

(2, 1) and (-2, -7)

Using: y2-y1
m=------
x2-x1

Can anyone help me by verifying if is this the correct answer? Thanks

Answer 1

y = -8x + b
1 = -8(1) + b
1 = -8 +b
8 + 1 = b
9 = b
y = -8x + 9

Answer 2

\[y = mx +c\]
\[m = 2\]
\[c =-3\]
\[y =2x - 3\]