Question

Find an equation of the line containing the given pair of points.
​(−5​,−5​) and ​(4​,4​)

Answer 1

y = x - 9

Explanation:

`Slope=(y^(2)-y^(1) )/(x^(2)-x^(1) )=(4-(-5))/(4-(-5))=(9)/(9)=1`

`y-intercept:y-y_(1)=m(x-x_(1) ) \\y-(-5)=1(x-4)\\y+5=x-4\\`

Subtract 5 from both sides;

y = x - 9