Of x represents time, the average rate of change of the function f(x) in the first three seconds

Geometry? i am really bad at math and have dyscalcullia. .

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

What is the value of f(x) = 2.2 for f(-2)?