The following ordered pairs (x, y) define the relation q.

q = {(-1, 4), (-2, 3), (4, 4), (2, -2)}

is q a function?

a) no, because there is more than one x value from some y values

b) yes, because there is exactly one y value for every x value

c) yes, because there is exactly one x value for every y value

d) no, because there is more than one y value for every x value

4. a spring scale is constructed so that each 0.10-n increment is separated by 0.50 cm. what spring constant is necessary for the scale to be accurate? -1.0n/cm -0.10n/cm -9.8 n/cm -0.20n/cm

The factorization of 8x3 -125 is (2x-5)(jx2 +kx+25)

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)