Step+2

Now we have the slope of the tangent line. It is 9x 2, which is also our derivative of the original equation.After the slope has been obtained we use our x-value of x=1. The coordinates are (1,-3). Now we use the derivative and substitute our x-value of 1 for x and solve for the slope. At x=1, the slope equals 9(1) 2 = 9.

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