Which linear regression equation best fits the given points? (1, 0), (4, 5), (5, 12), (7, 16), (8, 25), (11, 22), (14, 32)

yˆ=−52x−1.9
yˆ=52x−1.5
yˆ=25x+1.9
yˆ=−25x+1.5

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

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

Tom drove 206 miles in 3.9 hours. estimate his average speed.