| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.26 |
| Score | 0% | 65% |
Simplify (y - 7)(y + 2)
| y2 + 5y - 14 | |
| y2 + 9y + 14 | |
| y2 - 9y + 14 | |
| y2 - 5y - 14 |
To multiply binomials, use the FOIL method. FOIL stands for First, Outside, Inside, Last and refers to the position of each term in the parentheses:
(y - 7)(y + 2)
(y x y) + (y x 2) + (-7 x y) + (-7 x 2)
y2 + 2y - 7y - 14
y2 - 5y - 14
If the length of AB equals the length of BD, point B __________ this line segment.
intersects |
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bisects |
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trisects |
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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.
Solve for c:
-5c + 8 > \( \frac{c}{-5} \)
| c > -\(\frac{4}{11}\) | |
| c > -\(\frac{21}{31}\) | |
| c > 1\(\frac{2}{3}\) | |
| c > -7\(\frac{1}{2}\) |
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 > sign and the answer on the other.
-5c + 8 > \( \frac{c}{-5} \)
-5 x (-5c + 8) > c
(-5 x -5c) + (-5 x 8) > c
25c - 40 > c
25c - 40 - c > 0
25c - c > 40
24c > 40
c > \( \frac{40}{24} \)
c > 1\(\frac{2}{3}\)
Which of the following expressions contains exactly two terms?
polynomial |
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quadratic |
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monomial |
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binomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
A coordinate grid is composed of which of the following?
y-axis |
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origin |
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all of these |
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x-axis |
The coordinate grid is composed of a horizontal x-axis and a vertical y-axis. The center of the grid, where the x-axis and y-axis meet, is called the origin.