| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.49 |
| Score | 0% | 70% |
What is the circumference of a circle with a diameter of 14?
| 14π | |
| 26π | |
| 9π | |
| 5π |
The formula for circumference is circle diameter x π:
c = πd
c = 14π
Simplify (y - 6)(y + 3)
| y2 + 9y + 18 | |
| y2 + 3y - 18 | |
| y2 - 9y + 18 | |
| y2 - 3y - 18 |
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 - 6)(y + 3)
(y x y) + (y x 3) + (-6 x y) + (-6 x 3)
y2 + 3y - 6y - 18
y2 - 3y - 18
A coordinate grid is composed of which of the following?
origin |
|
all of these |
|
x-axis |
|
y-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.
A(n) __________ is to a parallelogram as a square is to a rectangle.
trapezoid |
|
quadrilateral |
|
rhombus |
|
triangle |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
Breaking apart a quadratic expression into a pair of binomials is called:
normalizing |
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deconstructing |
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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.