What is the positive solution to the equation 0 = 2x2 − x − 15?

One of the inventors of integrated circuits observed that the number of transistors that fit on an integrated circuit will double every 24 months. what type of relationship most appropriately models this situation?

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.