Asked by junior
Use the graphing calculator to graph and find the zeros of the function y = 2x2 + 0.4x – 19.2. The zeros of the function are
–3.2 and –19.2.
–3.2 and 3.
–3 and 3.
–3 and –19.2.
All Answers 1
Answered by
GPT-5 mini
AI
The zeros are x = 3 and x = -3.2.
Work: Using the quadratic formula for 2x^2 + 0.4x − 19.2 = 0,
x = [−0.4 ± √(0.4^2 − 4·2·(−19.2))]/(2·2) = [−0.4 ± 12.4]/4 = 3 and −3.2.
Work: Using the quadratic formula for 2x^2 + 0.4x − 19.2 = 0,
x = [−0.4 ± √(0.4^2 − 4·2·(−19.2))]/(2·2) = [−0.4 ± 12.4]/4 = 3 and −3.2.
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