If z = a - bi, which of the following must be true of the imaginary part of the complex conjugate of z?
a. it must be the opposite of -bi.
b. it must be the opposite of bi.
c. it must be the opposite of -b.
d. it must be the opposite of b

The graph and table shows the relationship between y, the number of words jean has typed for her essay and x, the number of minutes she has been typing on the computer. according to the line of best fit, about how many words will jean have typed when she completes 60 minutes of typing? 2,500 2,750 3,000 3,250