What is the key difference between command and market economies? A. A market economy places a strong emphasis on a small group holding responsibility for planning production.
B. A command economy considers private property essential to protect, while a market economy places no value on private property.
C. The basic economic questions are unaddressed in a market economy.
D. Households answer the basic economic questions in a market economy, while a group of leaders answer them in a command economy.
E. A command economy depends much more on the principle of the invisible hand.

You need to figure out at which x-value does the graph has a tangent line slope of -1.remember, the derivative is the slope of the tangent line. so find the derivative function and set it to equal -1 to find the x-value that will have a tangent line slope of 0.differentiate with the chain rule.    set the derivative to equal -1 and solve for x.      take log base 10 of both sides. also recall that  .    so the x-coord of the point of tangency is .the y-coordinate of this point of tangency can be calculated using the original function:     using point-slope form, the equation of the tangent line is      the x-intercept of this tangent line is when the graph is at y=0.    this rounds off to  .choice c.

answer:

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explanation: