Math 110 Exam 1 QUESTIONS WITH ANSWERS.

Math 110 Exam 1 QUESTIONS WITH |\ |\ |\ |\ |\ |\




ANSWERS

Finding Domain - CORRECT ANSWERS ✔✔Rule 1) Cannot
|\ |\ |\ |\ |\ |\ |\ |\



divide by zero |\ |\




set denominator to zero and solve
|\ |\ |\ |\ |\




Finding Domain - CORRECT ANSWERS ✔✔Rule 2) cannot
|\ |\ |\ |\ |\ |\ |\ |\



take the square root of negative number
|\ |\ |\ |\ |\ |\




set what is inside radical >= 0 and solve
|\ |\ |\ |\ |\ |\ |\ |\




*make number lines* |\ |\




Polynomial Function - CORRECT ANSWERS ✔✔ex: f(x)= |\ |\ |\ |\ |\ |\ |\



2x^4 + 3x^2 - 10x |\ |\ |\ |\




all powers must be *non negative whole numbers* cannot
|\ |\ |\ |\ |\ |\ |\ |\



have negative powers, square roots, or fractional powers
|\ |\ |\ |\ |\ |\ |\ |\

, the *degree* of the function is the highest power (in this
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



case 4) |\




Rational Function - CORRECT ANSWERS ✔✔ex: f(x)= (x^3
|\ |\ |\ |\ |\ |\ |\



+5x^2 -7) / x+1
|\ |\ |\ |\




It is the QUOTIENT of 2 polynomials
|\ |\ |\ |\ |\ |\




This means NO negative powers, square roots or
|\ |\ |\ |\ |\ |\ |\ |\



fractional powers |\




*does NOT have a degree* |\ |\ |\ |\




Power Function - CORRECT ANSWERS ✔✔ex: f(x)= 2x^5,
|\ |\ |\ |\ |\ |\ |\ |\



3x^-2, square roots, etc |\ |\ |\




Powers can be any real number (including negatives and
|\ |\ |\ |\ |\ |\ |\ |\ |\



fractions)


*does NOT have a degree* |\ |\ |\ |\




All polynomial functions are power functions... - CORRECT
|\ |\ |\ |\ |\ |\ |\



ANSWERS ✔✔but the reverse is not true! Not all power
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



functions are polynomial functions |\ |\ |\