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For which value of m does the graph of y = 18x2 + mx + 2 have exactly one x-intercept?
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For which value of m does the graph of y = 18x2 + mx + 2 have exactly one x-intercept?

User Mfperzel
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2 Answers

6 votes

Answer: c on endge

Explanation:

User Hollsk
by
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y = 18 x² + m x + 2
Exactly one x - intercept is for:
D = m² - 4 · 18 · 2 = 0
m² - 144 = 0
m² = 144
Answer:
m = -12 or m = 12
User Loomi
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