What is the slope of this graph?

Which quadratic function best fits this data? x y 1 32 2 78 3 178 4 326 5 390 6 337 a. y=11.41x2+154.42x−143.9 b. y=−11.41x2+154.42x−143.9 c. y=11.41x2+154.42x+143.9 d. y=−11.41x2+154.42x+143.9

Look at the chart showing the results of a baseball player at bat. which is the probability of getting a hit?

Yvaries directly as x. y =90 when x=6. find y when x=13