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1. |
What is true about the graphs of y = 2x2 and y = -2x2? |
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A. |
y = 2x2 opens to the left and y = -2x2 opens to the right. |
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B. |
y = 2x2 opens downward and y = -2x2 opens upward. |
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C. |
y = 2x2 opens upward and y = -2x2 opens downward. |
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D. |
y = 2x2 opens to the right and y = -2x2 opens to the left. |
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Hint |
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2. |
Consider the function y = 2x2 + 3. Which ordered pairs from the set
{(-4, 35), (-3, 20), (-2, 11), (5, 52)} are solutions? |
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A. |
{(-4, 35), (5, 52)} |
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B. |
{(-4, 35), (-3, 20)} |
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C. |
{(-2, 11), (-3, 20)} |
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D. |
{(-4, 35), (-2, 11)} |
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Hint |
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3. |
Find the graph of  . |
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A. |
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B. |
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C. |
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D. |
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Hint |
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4. |
Use the graph to find the positive solution to 475 = 4.9x2. |
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A. |
x = 9.3 |
B. |
x = 9.8 |
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C. |
x = 8.9 |
D. |
x = 8.1 |
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Hint |
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5. |
What is the form of an equation for a doubling pattern? |
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A. |
y = 2x |
B. |
2y = x |
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C. |
y = x2 |
D. |
y = x + 2 |
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Hint |
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