Step-by-step explanation:
The slope-intercept form of the equation of a line is:
![y=mx+b](https://img.qammunity.org/2023/formulas/mathematics/high-school/smsb8cbft03lwblmi49nf2l6jby2ofxzws.png)
Where m is the slope and b is the y-intercept.
In this problem the slope is 3/7:
![y=(3)/(7)x+b](https://img.qammunity.org/2023/formulas/mathematics/college/bxlyt4iezu2c10ou0fvqd58biqtusakp3p.png)
To find the y-intercept b we have to use the point. Replace x = 14 and y = 3 and solve for b:
![\begin{gathered} 3=(3)/(7)\cdot14+b \\ 3=6+b \\ b=3-6=-3 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/yr60a3oj4xij2i5hwfjl4ws4boushdfgwb.png)
Answer:
The equation is:
![y=(3)/(7)x-3](https://img.qammunity.org/2023/formulas/mathematics/college/glprs6djdispi3xj7pcl224jllpef93uc5.png)