Question

B. Using your answer in letter a or write the equation of the line in the form Ax + By = C

Answer 1

Explanation:

(1, 5.5) ; (2, 9)

Slope =
`(y_(2)-y_(1))/(x_(2)-x_(1))\\`

`= (9-5.5)/(2-1)\\\\=(3.5)/(1)\\\\= 3.5`

= 7/2

m = 7/2 ; (2 , 9)

y - y1 =m(x -x1)

`y - 9 = (7)/(2)(x- 2)\\\\y - 9 = (7)/(2)x - (7)/(2)*2\\\\y -9 = (7)/(2)x - 7\\\\y = (7)/(2)x - 7 + 9\\\\y = (7)/(2)x + 2`

Multiply the equation by 2

`2y = 2*(7)/(2)x + 2 *2\\\\2y = 7x + 4\\\\7x - 2y = -4\\`