Hi Everyone I am new on pls follow

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?