Answer:
y=2x+5
Step-by-step explanation:
The y-intercept is when x is o so that will be 5.
To find the slope use the slope formula which is the change of y over the change of x. Choose 2 points.
[tex]\frac{y2-y1}{x2-x1}[/tex]
[tex]\frac{9-7}{2-1}[/tex]=[tex]\frac{2}{1}[/tex]=2
