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Slope of tangent to y = x² + 3x at point (1, 4):
A1
B3
C2
D5 (y' = 2x + 3; at x=1: 5)
Answer & Solution
Correct answer: D. 5 (y' = 2x + 3; at x=1: 5)
y' = 2x + 3. At x = 1: y' = 5.
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