Writing The graph shows a proportional relationship between the
variables y and x. Write an equation to
model the relationship. Use pencil and
paper. Explain how you know there is
a proportional relationship if you are
given either an equation or a graph.

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?

The weekly amount spent by a company for travel has an approximately normal distribution with mean = $550 and standard deviation = $40. a) what is the probability that the actual weekly expense will exceed $570 for more than 20 weeks during the next year? (note: one year = 52 weeks) b) what is the probability that actual weekly expenses exceed $580 for 10 or more, but 16 or fewer weeks during the next year?