Lin and Clare were standing in the woods near a stream, and each the stone up in the air at the same time so that it would land in the water. The
graph represents the height of a stone t seconds after it was tossed up by Lin.
11
10
9
height (feet)
ih
time (seconds)
The function given by S(t) = (-161 - 8) (t - 1) represents the height of a
stone t seconds after it was thrown by Clare,
In both functions, height is measured in feet.
Whose stone hit the water first?
When did that happen?

Each equation given below describes a parabola. which statement best compares their graphs? x = 2y^2 x = 8y^2

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

Which scenarios are most effectively explored by conducting an experiment? there is more than one correct answer. select all that apply. researchers want to study the effectiveness of a particular drug for treating migraines. they want to know which dosage of the drug yields the best results with the least side effects. to ensure fair results, the researchers want to ensure that participants and dosage administrators do not know which dosage participants receive. a teacher wants to plan a class fieldtrip and quickly determine where students prefer to go for the class fieldtrip. a car mechanic wants to know which of two engine brands makes better-performing engines. he wants to test the engines in identical situations and rate their performance in a way that can be fairly measured. a chemist studies the properties of a metal compound. she wants to know how the sample size of the metal affects its ability to conduct electricity. she wants to conduct the research in a controlled environment to minimize bias. a realty company wants to know the average income of its clients. the company wants to gather data income from current clients.