Answer: Third option.
Step-by-step explanation:
By definition, the equation of the line in slope-intercept form is:
[tex]y=mx+b[/tex]
Where: m is the slope of the line and b is the y-intercept.
As you can see in the options shown in the image attached, the only equation that has the form of the equation of the line in slope-intercept form is the Equation 3, which is:
[tex]y=12x+17[/tex]
Where:
[tex]m=12\\b=17[/tex]
Therefore, the graph of the Equation 3 is a straight line.
