Plot the complex number $z=2-4i$ on the graph below.

In Exercises 37–52, perform the indicated operations and write the result in standard form. ___ ___ √−64 − √−25

In Exercises 1–3, perform the indicated operations and write the result in standard form. (6 − 7i)(2 + 5i)

In Exercises 1–10, plot each complex number and find its absolute value. z = 4i

In Exercises 1–10, plot each complex number and find its absolute value. z = 3 + 2i

Plot the complex number $z=-i$ on the graph below.

Plot the complex number $z=5$ on the graph below.

In Exercises 1–8, add or subtract as indicated and write the result in standard form. (7 + 2i) + (1 − 4i)

In Exercises 1–10, perform the indicated operations and write the result in standard form. (8 − 3i) − (17 − 7i)