Answer:
a) [tex] y= 2x+1[/tex]
The graph is on the figure with the red line
b) [tex] 2= 3*2 +b[/tex]
[tex] b= 2-6 =-4[/tex]
And the equation would be:
[tex] y = 3x -4[/tex]
The graph is on the figure with the blue line
Step-by-step explanation:
Part a
We know that a=2 and b =1
The general expression is given by:
[tex] y= 2x+1[/tex]
The graph is on the figure with the red line
Part b
For this case we know that a=3 and we know a point given (2,2). Then we can find the value of b like this:
[tex] 2= 3*2 +b[/tex]
[tex] b= 2-6 =-4[/tex]
And the equation would be:
[tex] y = 3x -4[/tex]
The graph is on the figure with the blue line
