Which of the following statements must be true to prove lines m and n are parallel? Question 10 options:

A)

∠1 ≅ ∠6

B)

∠4 ≅ ∠8

C)

m∠2 + m∠6 = 180°

D)

m∠3 + m∠5 = 180°

Consider the function f left parenthesis x right parenthesis equals 4 x squared minus 3 x minus 1f(x)=4x2−3x−1 and complete parts (a) through (c). (a) find f left parenthesis a plus h right parenthesis f(a+h); (b) find startfraction f left parenthesis a plus h right parenthesis minus f left parenthesis a right parenthesis over h endfraction f(a+h)−f(a) h; (c) find the instantaneous rate of change of f when aequals=77.