The value fo k is
![(13)/(2)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/i02pqm1wc8owukqy6lc3ld98eg3livuzkl.png)
. This is because c, the constant, is the y-intercept. The graph shows where the line intersects the y-axis, which is -3. So you substitute -3 with c. To find the value of k, plug in the coordinate with the x and y values and then solve for k.