Math Placement Test Equations UPDATED ACTUAL Exam Questions and CORRECT Answers

Math Placement Test Equations UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Distance Formula - CORRECT ANSWER - d=√(x₂-x₁)²+(y₂-y₁)²



Quadratic Equation - CORRECT ANSWER - ax²+bx+c=0



Quadratic Formula - CORRECT ANSWER - x=-b±√b²-4ac/2a



Discriminant - CORRECT ANSWER - b²-4ac=0 has 1 real solution b²-4ac>0 has 2



Avg Rate of Change for a Function - CORRECT ANSWER - ∆f(x)/∆x



lne = - CORRECT ANSWER -0



Inverse Function - CORRECT ANSWER - xlogx=xyx



2π - CORRECT ANSWER - 360



Angle Measure - CORRECT ANSWER - x/y=360/2π



sinθ (Def of Circular Function) - CORRECT ANSWER - y/r



cosθ (Def of Circular Function) - CORRECT ANSWER - x/r



tanθ (Def of Circular Function) - CORRECT ANSWER - y/x