URI Math Placement Exam with Approved Answers |Latest 2024/2025

URI Math Placement Exam with Approved
Answers.

Negative exponent One over original number to the original power (except
positive power)


finding equation of line given two points -find slope
-using y=mx+b: plug in slope, and x and y from either ordered pair
-solve for b


solve for x in fractions -get x fraction alone
-clean up other side
-if x is in denominator, flip both sides of equation
-multiply both sides by denominator of x


Fractional exponent -take denominator root of original number
-numerator remains as exponent to original number




Fraction to a power If fraction in parentheses:
-the whole fraction times itself x many times
-multiply through
If no parentheses:

, -only the number with the exponent is effected


Factoring

-how and what signs to use SUM CENTER
-find two numbers that add to middle term and multiply to outside term
-if second sign in original equation is positive, then both signs in parentheses are
same as first sign in equation
-if second sign is negative, then both signs in parentheses are different
-final answers are opposite of signs in parentheses


Exponent properties -negative exponent = one over original number to the
original power (except positive power)


-fractional exponent = denominator root of original number
-numerator remains as exponent to original number


-anything to power of 0 = 1
-anything to power of 1 = itself


-multiplying equivalent variables with exponents:
-add exponents


-dividing equivalent variables with exponents:
-subtract exponents