# Completing the Square to Find Radius and Center of a Circle; Slope and Intercept; Equation of Tangent Line and Time and Velocity of Falling Object

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Complete the square to find the center and the radius of the circle

x^2+y^2- 4x+2y+3=0

Find the slope and the y-intercept of: 3x+y= -2

Find the equation of the line tangent to f(t)=2/3t^2

The height s (in feet) at time t (in seconds) of a silver dollar dropped from the top of the Washington Monument is

s= -16t^2+555

a.) How long will it take the dollar to hit the ground?

b.) Find the velocity of the dollar when it hits the ground.

https://brainmass.com/math/graphs-and-functions/40455

#### Solution Summary

Completing the Square to Find Radius and Center of a Circle; Slope and Intercept; Equation of Tangent Line and Time and Velocity of Falling Object are investigated.

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