which ordered pairs are solutions of each equation? y = 3x+1 a.(0,1) b. (1/3,2) c. (-1, -2/3) d. (-1,-2)

Question

which ordered pairs are solutions of each equation? y = 3x+1 a.(0,1) b. (1/3,2) c. (-1, -2/3) d. (-1,-2)

Answer 1

replace x in y=3x+1 with each x value in each ordered pair and determine if you get the corresponding y value

a) (0,1)   y=3(0)+1

              y=0+1

              y=1

a) is YES

 

b) (1/3,2)  y=3(1/3)+1

                 y=1+1

                 y=2

b) is YES

 

c) (-1,-2/3)  y=3(-1)+1

                   y=-3+1

                   y=-2

c) is NO

 

d) (-1,-2)   y=3(-1)+1

                 y=-3+1

                 y=-2

d) is YES