Let line l1 be the graph of 5x + 8y = -9. line l2 is perpendicular to line l1 and passes through the point (10,10). if line l2 is the graph of the equation y=mx +b, then find m+b.

Dana kicks a soccer ball. the table shows the height of the soccer ball with respect to the time, in seconds, after the ball was kicked.time | height(seconds) | (feet) ~~~~~~~~~~~~~~~0.5 211 341.5 392 362.5 253 6which graph best displays the relationship shown in the table? (i just need confirmation that its c)