Answer:
The value of b is -3 and m is 0.
Step-by-step explanation:
You have to substitute the coordinates into both equation in order to find m and b value :
Find m,
[tex]y = mx + 3[/tex]
At (2,3),
[tex]3 = m(2) + 3[/tex]
[tex]3 - 3 = 2m[/tex]
[tex]2m = 0[/tex]
[tex]m = 0[/tex]
Find b,
[tex]y = 3x + b[/tex]
At (2,3),
[tex]3 = 3(2) + b[/tex]
[tex]b + 6 = 3[/tex]
[tex]b = 3 - 6[/tex]
[tex]b = - 3[/tex]
