| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.76 |
| Score | 0% | 55% |
Breaking apart a quadratic expression into a pair of binomials is called:
deconstructing |
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normalizing |
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factoring |
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squaring |
To factor a quadratic expression, apply the FOIL (First, Outside, Inside, Last) method in reverse.
If the length of AB equals the length of BD, point B __________ this line segment.
bisects |
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trisects |
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intersects |
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midpoints |
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.
Find the value of a:
6a + y = 3
-6a + 5y = -1
| -1\(\frac{1}{5}\) | |
| \(\frac{3}{10}\) | |
| \(\frac{4}{9}\) | |
| \(\frac{10}{21}\) |
You need to find the value of a so solve the first equation in terms of y:
6a + y = 3
y = 3 - 6a
then substitute the result (3 - 6a) into the second equation:
-6a + 5(3 - 6a) = -1
-6a + (5 x 3) + (5 x -6a) = -1
-6a + 15 - 30a = -1
-6a - 30a = -1 - 15
-36a = -16
a = \( \frac{-16}{-36} \)
a = \(\frac{4}{9}\)
Which of the following is not required to define the slope-intercept equation for a line?
slope |
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y-intercept |
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x-intercept |
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\({\Delta y \over \Delta x}\) |
A line on the coordinate grid can be defined by a slope-intercept equation: y = mx + b. For a given value of x, the value of y can be determined given the slope (m) and y-intercept (b) of the line. The slope of a line is change in y over change in x, \({\Delta y \over \Delta x}\), and the y-intercept is the y-coordinate where the line crosses the vertical y-axis.
A trapezoid is a quadrilateral with one set of __________ sides.
parallel |
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equal length |
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right angle |
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equal angle |
A trapezoid is a quadrilateral with one set of parallel sides.