Asap please

what is the slope of the following line

What term best describes a line and a point that lie in the same plane? a. congruent b. coplanar c. collinear d. equal

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

If mary had 320 toy cars and she gave her friend 50 cars and then she gave her brother 72 more cars how much toy cars would mary have left ● explain with proper details