Question

А(-9, -5), b(6, 5), C(-2, 5)

Answer 1

See below

Explanation:

Equation: y =
`-(2x^2)/(21) + (8x)/(21) + (43)/(7)`

Slope-intercept form:
`y = (2)/(3) x + 1`

Point slope form:
`y + 5 = (10)/(7) * (x+9)`