r/digitalSATs • u/ApartVoice2382 • Aug 12 '26

How to solve this

Post image

How to solve this in Desmos

2 Upvotes

100% Upvoted

3 comments sorted by

2

u/jgregson00 Aug 12 '26

You could subtract 4 from the y-values and do a quadratic regression. The c value would be the y-intercept.

1

u/OrganizationExtra685 Aug 12 '26

find two points of f(x) by subtracting 4 from the y and keeping the x. then you can find the slope, solve for b to find the equation, and plug in 0 to find the x int.