Look at the following function. (a) Is the function one-to-one? (b) If so, find the inverse of the function.A = {(7, -3), (8, -3), (9, -9), (10, -6)}
A. (a) not one-to-one
(b) Inverse cannot be found
B. (a) one-to-one
(b) {(-3, 7), (-3, 8), (-9, 9), (-6, 10)}
Answer: A
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Find the LCM of the set of numbers.6, 12, 18
A. 12 B. 18 C. 36 D. 216
Divide.
A. 6m2 + 6m + 8 B. m2 + 7m + 8 C. m2 + 6m + 6 D. 6m2 - 6m + 8
Graph the parabola and give its vertex, axis, x-intercepts, and y-intercepts.f(x) = x2 - 4x - 5
A. vertex (-2, 9); axis is x = -2;
x-intercepts are -5 and 1; y-intercept is 5
B. vertex (2, 9); axis is x = 2;
x-intercepts are 5 and - 1; y-intercept is 5
C. vertex (2, -9); axis is x = 2;
x-intercepts are 5 and - 1; y-intercept is -5
D. vertex (-2, -9); axis is x = -2;
x-intercepts are -5 and 1; y-intercept is -5
Solve the problem.List all the combinations of 4 objects 1, 2, 3, and 4 taken 3 at a time. What is C(4, 3)?
A. 111, 112, 113, 114, 121, 122, 123, 124, 131, 132, 133, 134, 141, 142, 143, 144, 211, 212, 213, 214, 221, 222, 223, 224, 231, 232, 233, 234, 241, 242, 243, 244, 311, 312, 313, 314, 321, 322, 323, 324, 331, 332, 333, 334, 341, 342, 343, 344, 411, 412, 413, 414, 421, 422, 423, 424, 431, 432, 433, 434, 441, 442, 443, 444 C(4, 3) = 64 B. 123, 124, 134, 234, 321, 432 C(4, 3) = 6 C. 123, 124, 132, 134, 142, 143, 213, 214, 231, 234, 241, 243, 312, 314, 321, 324, 341, 342, 412, 413, 421, 423, 431, 432 C(4, 3) = 24 D. 123, 124, 134, 234 C(4, 3) = 4