What is the initial value of the function represented by this graph? (below)

0
3
4
7

Me because some of question i don’t understand

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?