What is the answer of this paper

Which of the following is true for the relation f(x)=2x^2+1

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 rate of change of a line that passes through (2,-5) and (6,-2)?