B) The domain is all integers from negative 1,200 to positive 2,00.
C) The domain is all integers from 0 to 500.
D) The domain is all real numbers from 0 to 500.
2) A student is running a 3-kilometer race. He runs 1 kilometer every 2 minutes. Select the function that describes his distance from the finish line after x minutes.
A) f(x)= -1/3x+2
B) f(x)= -1/2x+3
C) f(x)= 1/2x+3
D) f(x)= 1/3x+2
3) A coal car on a train weighs 30 tons plus 1 ton per cubic yard of coal x that it carries. The total weight of a coal car is f(x)= x+30. How will the graph of this function change if the coal car weight is changed to 26 tons?
A) The line will shift vertically up by 4 tons.
B) The line will shift vertically up 26 tons.
C) The line will shift vertically down by 4 tons.
D) The line will shift vertically down by 26 tons.
Answer:
1: 4 || 2: 1.5 || 3: 8 || 4: 1 || 5: 5 || 6: 9 ||
Step-by-step explanation: