What is the density of this object? (A sphere)
1 answer:
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Using the power rule, 
.
At x = 0,
. Therefore, the slope of the tangent line is -3. In point-slope form, the equation of the line tangent to the curve at (0,3) is 
.
At x = 2,
. Therefore, the slope of the tangent line is 1. In point-slope form, the equation of the line tangent to the curve at (2,1) is 
.
At x = 0,
At x = 2,