| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.92 |
| Score | 0% | 58% |
The endpoints of this line segment are at (-2, 8) and (2, -2). What is the slope of this line?
| -\(\frac{1}{2}\) | |
| -1 | |
| 2 | |
| -2\(\frac{1}{2}\) |
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, 8) and (2, -2) so the slope becomes:
m = \( \frac{\Delta y}{\Delta x} \) = \( \frac{(-2.0) - (8.0)}{(2) - (-2)} \) = \( \frac{-10}{4} \)What is 9a - 6a?
| 15a2 | |
| 3a | |
| 3a2 | |
| 54a2 |
To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.
9a - 6a = 3a
Solve 5b + 2b = -8b + 5y + 8 for b in terms of y.
| -\(\frac{1}{7}\)y - 1\(\frac{1}{7}\) | |
| 12y + 8 | |
| -5y - \(\frac{1}{2}\) | |
| \(\frac{3}{13}\)y + \(\frac{8}{13}\) |
To solve this equation, isolate the variable for which you are solving (b) on one side of the equation and put everything else on the other side.
5b + 2y = -8b + 5y + 8
5b = -8b + 5y + 8 - 2y
5b + 8b = 5y + 8 - 2y
13b = 3y + 8
b = \( \frac{3y + 8}{13} \)
b = \( \frac{3y}{13} \) + \( \frac{8}{13} \)
b = \(\frac{3}{13}\)y + \(\frac{8}{13}\)
On this circle, a line segment connecting point A to point D is called:
circumference |
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radius |
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chord |
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diameter |
A circle is a figure in which each point around its perimeter is an equal distance from the center. The radius of a circle is the distance between the center and any point along its perimeter. A chord is a line segment that connects any two points along its perimeter. The diameter of a circle is the length of a chord that passes through the center of the circle and equals twice the circle's radius (2r).
To multiply binomials, use the FOIL method. Which of the following is not a part of the FOIL method?
First |
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Odd |
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Inside |
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Last |
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.