Determine whether the parabola y = −x2 + 15x + 8 opens up, down, left, or right.

In which form is the following function written? y = - 2(x – 3)(x + 5)

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?

Astudent found the solution below for the given inequality. |x-9|< -4 x-9> 4 and x-9< -4 x> 13 and x< 5 which of the following explains whether the student is correct? -the student is completely correct because the student correctly wrote and solved the compound inequality. -the student is partially correct because only one part of the compound inequality is written correctly. -the student is partially correct because the student should have written the statements using “or” instead of “and.” -the student is completely incorrect because there is no solution to this inequality.