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URI MATH PLACEMENT E XAM
(LATEST UPDATE) QUESTIONS
AND VERIFIED ANSWERS | 100%
CORRECT | GRADE A
Question 1: What is absolute value?
CORRECT ANSWER: How far away a number is from
zero - whatever the answer is, but positive
Question 2: How do you solve absolute value brackets in
an equation?
CORRECT ANSWER: -take out brackets -turn into two
equations; one positive answer, one negative -solve for x for both equations -two answers
Question 3: How do you add fractions?
CORRECT ANSWER: -find least common denominator
-multiply each numerator by however much it's denominator was multiplied -add new numerators, keep denominator -SIMPLIFY
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Question 4: How do you subtract fractions?
CORRECT ANSWER: -find least common denominator
-multiply each numerator by however much it's denominator was multiplied -subtract new numerators, keep denominator -SIMPLIFY
Question 5: What is the quadratic formula?
CORRECT ANSWER: x= -b + or - radical (b squared -
4ac) all over 2a
Question 6: How do you multiply fractions?
CORRECT ANSWER: multiply through (numerator x
numerator) over (denominator over denominator)
SIMPLIFY
Question 7: How do you divide fractions?
CORRECT ANSWER: Keep. Change. Flip -KEEP first
fraction -CHANGE division sign to multiplication sign - FLIP second fraction -multiply through -SIMPLIFY
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Question 8: How do you handle a fraction to a power?
CORRECT ANSWER: 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
Question 9: How do you factor, including what signs to
use?
CORRECT ANSWER: 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
Question 10: What are the exponent properties?
CORRECT ANSWER: -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
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power of 1 = itself -multiplying equivalent variables with
exponents: -add exponents -dividing equivalent variables
with exponents: -subtract exponents
Question 11: What is a negative exponent?
CORRECT ANSWER: One over original number to the
original power (except positive power)
Question 12: What is a fractional exponent?
CORRECT ANSWER: -take denominator root of
original number -numerator remains as exponent to original number