ALEKS Basic Math Placement Exam |
Correctly Answered and Verified | 2024/2025
Updated Guide
How to multiply with decimals
- correct answer - ex: 9 x 0.6
Do (9 x 6) divided by 10 to get: 54 divided by 10 to get 5.4
Ratios to %
- correct answer - 1) make problem into fraction
2) do long division (with denom as outside #)
3) make decimal up top into %
How to graph parabola when given an equation * in standard
form*
- correct answer - *use y= ax² + bx + c*
1) find vertex using: x= -b/2a
2) graph vertex point
3) plug in value of vertex as x to get y coordinate
4) find additional points by plugging in x values into the y=ax² part
of equation
5) graph each point from vertex point
, How to graph parabola when given an equation * in vertex form*
- correct answer - use: y=a(x+h)² +k
H= horizontal shift
K= vertical shift
1) find vertex (h,k) and graph it
2) if there is *no* value for a, then go over 1, up 1
3) go over 2 up 4 for next points
Rules for scientific notation
- correct answer - -decimal moved to right= (-) exponent
-decimal moved to left= (+) exponent
*don't want zeros in front of decimal*
How to find domain with a given equation
- correct answer - -if a fraction, set denom. To zero, then solve
-in equation, plug in 0 for x
*usually can be a + or - solution*
(-) + (-)= ...
(-) x (-)= ...
(-) divided by a (-)= ...
- correct answer - (-)
(+)
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