Question 1113954
<br>
dy/dx = 9x+13  -->  y = (9/2)x^2+13x+C<br>
The missing constant C is the y-intercept, which is what we are looking for.<br>
The curve passes through the point (2,7); so
{{{7 = (9/2)(2^2)+13(2)+C}}}
{{{7 = 18+26+C}}}
{{{C = -37}}}<br>
The y-intercept is -37.