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

asked Jun 12, 2017 86.6k views

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6 votes

Answer: c on endge

Explanation:

Hollsk answered Jun 13, 2017

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0 votes

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

Loomi answered Jun 16, 2017

by Loomi

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