Please help! i don’t understand this question thank you

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

What is the t intercept of the line given by the equation below y= -10x + 14

Shown here are the three essential steps in a proof of the pythagorean theorem. comparing the 1st and 3rd steps how are the colored regions related as to the areas? a. yellow+blue=orange b. orange=yellow=green c.yellow+blue=green=orange d.yellow+green=orange+blue