Please provide an answer

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?