| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.44 |
| Score | 0% | 69% |
Breaking apart a quadratic expression into a pair of binomials is called:
deconstructing |
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squaring |
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normalizing |
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factoring |
To factor a quadratic expression, apply the FOIL (First, Outside, Inside, Last) method in reverse.
Factor y2 + 7y + 12
| (y - 3)(y + 4) | |
| (y + 3)(y + 4) | |
| (y - 3)(y - 4) | |
| (y + 3)(y - 4) |
To factor a quadratic expression, apply the FOIL method (First, Outside, Inside, Last) in reverse. First, find the two Last terms that will multiply to produce 12 as well and sum (Inside, Outside) to equal 7. For this problem, those two numbers are 3 and 4. Then, plug these into a set of binomials using the square root of the First variable (y2):
y2 + 7y + 12
y2 + (3 + 4)y + (3 x 4)
(y + 3)(y + 4)
Which of the following expressions contains exactly two terms?
quadratic |
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binomial |
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polynomial |
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monomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
The dimensions of this cube are height (h) = 8, length (l) = 4, and width (w) = 4. What is the volume?
| 360 | |
| 72 | |
| 18 | |
| 128 |
The volume of a cube is height x length x width:
v = h x l x w
v = 8 x 4 x 4
v = 128
If the length of AB equals the length of BD, point B __________ this line segment.
intersects |
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trisects |
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midpoints |
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bisects |
A line segment is a portion of a line with a measurable length. The midpoint of a line segment is the point exactly halfway between the endpoints. The midpoint bisects (cuts in half) the line segment.