Brad made a graph showing how many students were absent from school every day last week. Use the graph to answer the questions.

1. List the ordered pairs for the graphed points.

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2. How many students were absent on day 3? Explain how you know.

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3. On which day were the greatest number of students absent? How many students were absent that day?

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4. Is the relation represented by the graph a function? Why or why not?

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Find the quotient. 50a2 – 98b2 -5a +7b

In tossing one coin 10 times, what are your chances for tossing a head? a tail? 2. in tossing one coin 100 times, what are your chances for tossing a head? a tail? 3. in tossing one coin 200 times, what are your chances for tossing a head? a tail? deviation = ((absolute value of the difference between expected heads and observed heads) + (absolute value of the difference between expected tails and observed tails)) divided by total number of tosses. this value should always be positive. 4. what is the deviation for 10 tosses? 5. what is the deviation for the 100 tosses? 6. what is the deviation for 200 tosses? 7. how does increasing the total number of coin tosses from 10 to 100 affect the deviation? 8. how does increasing the total number of tosses from 100 to 200 affect the deviation? 9. what two important probability principles were established in this exercise? 10. the percent of occurrence is the obtained results divided by the total tosses and multiplied by 100%. toss the coins 100 times and record your results. calculate the percent occurrence for each combination. percent head-head occurrence: percent tail-tail occurrence: percent head-tail occurrence:

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)