ALEKS Math Placement Exam | Correctly
Answered and Graded A+ | Latest 2024
What should you do any time you solve by squaring?
- Correct Answer - Plug the answers back in (to double check)
How do you find the domain of an equation with a radical?
- Correct Answer - Set the value under the radical equal to 0.
IGNORE values outside the radical. (The domain ONLY includes
values that make the numbers under the radical greater than or
equal to 0)
What helps when you're trying to simplify a radical with a power
higher than 2?
- Correct Answer - Writing out a table with perfect roots of the
power
What is the range of an inverse function?
- Correct Answer - The domain of the original function
,When finding the domain of composition functions should you find
the domain of the simplified function or the unsimplified function?
- Correct Answer - The unsimplified function (ESPECIALLY if
there radicals)
Should you leave negatives in the denominator?
- Correct Answer - no (multiply by everything negative 1)
distance = - Correct Answer - rate x time
When solving a system of equations can you add the equations
together if one of the variables will cancel out? - Correct Answer -
YES
What should you always write out when doing your work?
What standard does an equation/ graph have to meet to be
considered a function?
, - Correct Answer - Each input can only have one output
How do you translate a graph up or down? - Correct Answer - The
value outside of the parentheses (DONT change sign)
How do you translate a graph side to side? - Correct Answer -
The value inside the parentheses (CHANGE SIGN)
When doing polynomial long division, which terms do you use
- Correct Answer - The leading coefficients
What do you normally confuse the least common multiple with?
- Correct Answer - The greatest common factor (the least
common multiple IS NOT the greatest common factor)
How do you find the least common multiple?
- Correct Answer - Find the smallest whole number that both
expressions divide evenly into. Then use the variables with the
highest power
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