If y is directly proportional to x and y is 12 when x = 10, what is the function rule that describes the variation?

How do you write something in scientific notation?

Factor the polynomial expression x6 – x3 – 20

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