Write an equation in point-slope form of the line having the given slope that contains the given point. m=4m=4, (2,5)

You can solve this by plugging the given information into point-slope form, which is y -  = m (x - ). So plug in m for m, the y coordinate (5) for y_{1} , and the x coordinate (2) for x_{1}.

y - y_{1} = m (x - x_{1}   Substitute the variables
y - 5 = 4 (x - 2)   Use the Distributive Property
y - 5 = 4x - 8   Add 5 to both sides
    y = 4x - 3

Idon’t understand this but 90