al 31 common Unit Assessment / 12 of 12 / Activity 3 Part C: Over what interval is f(x) negative? Justify your answer.

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft

you first to choose the points and then move from then as the slope you have