*Cumulative ASESSEMENT
[revision questions and
answers ]
Which could be the entire interval over which the function, f(x), is negative?
(-8, -2)
(-8, 0)
(-∞, -6)
(-∞, -4) - ANSWERS-(-∞, -4)
Which compound inequality is represented by the graph?
x < -4 or x ≥ 3
x < -4 and x ≥ 3
x ≤ -4 or x < 3
x ≤ -4 and x < 3 - ANSWERS-x < -4 or x ≥ 3
The graph represents a mechanic's labor costs for a given number of hours of car repair.
Which statement describes the relationship between labor cost and time for a car repair?
, All repairs requiring 1 hour or less have the same labor cost.
Labor costs the same no matter how many hours are used for a repair.
Labor costs for a repair are more expensive as the number of hours increases.
There is no cost of labor for a repair requiring less than 1 hour. - ANSWERS-All repairs requiring
1 hour or less have the same labor cost.
Martin has a combination of 33 quarters and dimes worth a total of $6. Which system of linear
equations can be used to find the number of quarters, q, and the number of dimes, d, Martin
has?
A.-q + d = 625q + 10d = 33
B.-q + d = 6 0.25q + 0.1d = 33
C.-q + d = 33 25q + 10d = 6
D.-q + d = 33 0.25q + 0.1d = 6 - ANSWERS-q + d = 33
0.25q + 0.1d = 6
Karl rides his bicycle 120 feet in 10 seconds. How many feet does he ride in 1 minute?
2 feet
12 feet
720 feet
7,200 feet - ANSWERS-720 feet
The solution to the system of equations shown is (2, 0).
3x − 2y = 6x + 4y = 2