In the xy-plane, the graph of a certain quadratic function has a single x-intercept and passes through the point (2.8). If the x-intercept of the graph is - X what is its y-intercept?
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B)
C)
D)
E)
Dunne a certain month. 20 percent of all the electricity used by a household was used by the water heater. The cost per kilowatt-hour of the electricity used by the water heater was half the cost per kilowatt-hour of the rest of the electricity used. For that month, the cost of the electricity used by the water heater was what traction of the cost of the electricity used by the household?
A)
B)
C)
D)
A certain train will travel from City A to City B. and then back to City A along the same route. The train is scheduled to spend a total of T hours traveling lime for the round-trip. The train travels from City A to City B in 13 hours, traveling at an average speed of 25 miles per hour. If the train is to arrive exactly on schedule, at what average speed must the train travel from City B to City A ?
A)
B)
C)
D)
E)
The five points C, D, E, F, and G lie on the number line, in that order from left to right, so that CD = 1.5 (EF) and DE = 1.5 (FG).
In sets A and B shown, I < v < y < z. Which of the following statement is about .1 and H must be true? Indicate all such statements.