| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.13 |
| Score | 0% | 63% |
Breaking apart a quadratic expression into a pair of binomials is called:
normalizing |
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factoring |
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deconstructing |
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squaring |
To factor a quadratic expression, apply the FOIL (First, Outside, Inside, Last) method in reverse.
The endpoints of this line segment are at (-2, -3) and (2, 5). What is the slope of this line?
| 2 | |
| 2\(\frac{1}{2}\) | |
| 1 | |
| \(\frac{1}{2}\) |
The slope of this line is the change in y divided by the change in x. The endpoints of this line segment are at (-2, -3) and (2, 5) so the slope becomes:
m = \( \frac{\Delta y}{\Delta x} \) = \( \frac{(5.0) - (-3.0)}{(2) - (-2)} \) = \( \frac{8}{4} \)Solve for z:
-3z - 5 = \( \frac{z}{1} \)
| \(\frac{16}{21}\) | |
| -\(\frac{3}{5}\) | |
| -1\(\frac{1}{4}\) | |
| \(\frac{8}{31}\) |
To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the equal sign and the answer on the other.
-3z - 5 = \( \frac{z}{1} \)
1 x (-3z - 5) = z
(1 x -3z) + (1 x -5) = z
-3z - 5 = z
-3z - 5 - z = 0
-3z - z = 5
-4z = 5
z = \( \frac{5}{-4} \)
z = -1\(\frac{1}{4}\)
A trapezoid is a quadrilateral with one set of __________ sides.
right angle |
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equal length |
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parallel |
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equal angle |
A trapezoid is a quadrilateral with one set of parallel sides.
A(n) __________ is two expressions separated by an equal sign.
problem |
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formula |
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expression |
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equation |
An equation is two expressions separated by an equal sign. The key to solving equations is to repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the equal sign and the answer on the other.