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mojhsa [17]
2 years ago
8

In the xy-plane, the line x + y=k, where k is a constant, is tangent to the graph of y=x^2+3x+1. What is the value of k?

Mathematics
1 answer:
Talja [164]2 years ago
4 0
Slope of tangent line = dy/dx = 2x+3
k is y_intercept of tangent line

2x+3 = -1
x = -2
y = (-2)^2+3(-2)+1 = -1

tangent line passes through point (-2,-1)

k = x+y

k = -2 -1

k = -3

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look id k which ans u want I m telling both

#5 such number could be <em><u>0</u></em> becoz it is not whole integer or positive

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