Question

Write the equation of lines shown on the graph.

Answer 1

Step-by-step explanation:

red       y = -3/2 x - 3       m = -3/2    (y2-y1) / (x2 - x1)   b = -3

blue     y = 2x + 3            m = 2   rise/run      b = 3

black     your turn           m  = ?   (0, -1) and (3, 0)  two points on the black line

                                       m = ?   (y2-y1) / (x2 - x1)  =  (0-(-1)) / (3 - 0)  = (0+1)/(3-0)

                                       m = ?

                                       b = the y value when x = 0, which is one of the points