How do you do find the equation of a cubic function?
because it looks like one.
well first i just plotted the points into excel then i tried all the lines of best fit to see which one it matched. It could also be a sine graph thing, but any polynomial of a degree of 3 or higher works too so i thought finding a cubic function that matches it would be easiest.
do i just sub in points into y=ax^3 +bx^2 +cx +d to get 4 formulas then solve?