Determine whether the underlined sentence opener in the sentence below begins with an adjective, adverb, infinitive, or preposition. Black and fuzzy, pandas appeal to everyone.

Please select the best answer from the choices provided.
A.
adjective
B.
adverb
C.
infinitive
D.
preposition

Iam pretty sure it is c.

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.