Write the slope-intercept form of the line through the point (2,4) and perpindicular to the line y= -x+7

Preview Question 6 Part 1 of 2  

Graph the system of equations: $\displaystyle {\left\lbrace\begin{array}{cc} {y}=&-{x}+{7}\\{y}=&\text{your answer from above}\end{array}\right.}$

graph will "snap to" every 1 points