Question

Write the slope intercept form of the equation. URGENT PLS HELP

Answer 1

7.

a(0,3) b(3,0)

x1 = 0, y1 = 3

x2 = 3, y2 = 0

formula :

`\displaystyle (y-y1)/(x-x1) =(y2-y1)/(x2-x1)`

`\displaystyle (y-3)/(x-0) =(0-3)/(3-0)`

`\displaystyle (y-3)/(x) =(-3)/(3)`

`\displaystyle 3(y-3) = -3x`

`\displaystyle 3y - 9 = -3x\\ \\ \\ 3y= -3x+9\\ \\ \\ we\ divide\ both\ side\ by\ \\ \\ \\ >>> y = -x+3`

8.

a(1,1) b(0,-4)

x1 = 1, y1 = 1

x2 = 0, y2 = -4

the same formula as number 7 :

`\displaystyle (y-y1)/(x-x1) =(y2-y1)/(x2-x1)`

`\displaystyle (y-1)/(x-1) =(-4-1)/(0-1)`

`\displaystyle (y-1)/(x-1) =(-5)/(-1)`

`\displaystyle -1(y-1) = -5(x-1)`

`\displaystyle -y+1 = -5x+5`

`\displaystyle -y= -5x+4`

`\displaystyle >>> y= 5x-4`