Find an equation of the tangent line to the graph of  at the point . ​

An airplane flies at an altitude of 5 miles toward a point directly over an observer. Consider θ and x as shown in the following figure. Write θ as a function of x. ​ ​

Identify the graph which has the following characteristics. , ​ Graph 1 ​ ​ Graph 2 ​ ​ Graph 3 ​ Graph 4 ​ ​

Use logarithmic differentiation to find the derivative of . ​

Find the derivative of the function. ​ ​

Find  if . ​

Use implicit differentiation to find an equation of the tangent line to the ellipse  at . ​

Is this metamorphic rock foliated?

What is the name of this igneous rock?

Extra Credit: What is the more specific name for the luster of this mineral?