Step-by-step explanation:
3. m1 = m2 = 1/2
formula = y - y1 = m2 ( x - x1)
y- ( -5) = 1/2 ( x - (-4))
y + 5 = 1/2 ( x + 4)
y = 1x/2 + 2 -5
y = 1x/2-3
4. m1 = m2 = 5/4
formula = y - y1 = m2 ( x - x1)
y- 2 = 5/4 ( x - (-8))
y = 5/4 ( x + 8)+2
y = 5x/4 + 12
