the ratio of the two legs of a right triangle is 3 to 4 if the short leg has a measure of 9 whats the long leg

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

An object is accelerating at a constant rate. its velocity in feet per second as a function of time in seconds can be modeled by the linear function v(t) = 2.5t. what does the dependent variable represent for this function? a) acceleration b) distance c) slope d) velocity

How to do a maths question? i have a mock