The table shown was generated by a graphics calculator. The expression y1 represents f(x).Write the function in the form y = mx + b.

A. y = 2x + 3
B. y = 2x - 3
C. y = -2x - 3
D. y = -2x + 3


Answer: C

Mathematics

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Write the first five terms of the geometric sequence with the given information.The first term is 4 and the common ratio is 3.

A. 12, 36, 108, 324, 972 B. 4, 7, 10, 13, 16 C. 4, 12, 36, 108, 324 D. 3, 12, 48, 192, 768

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Find the focus and the directrix of the parabola.y2 - 4x + 2y - 15 = 0

A. Focus: (-3, -1); directrix: x = -5 B. Focus: (-5, -4); directrix: y = -3 C. Focus: (-5, -1); directrix: x = -3 D. Focus: (0, -4); directrix: y = 8

Mathematics

Solve the problem.The height H (in feet) of a ball thrown into the air from the top of a building after t seconds is given by  Find the approximate value of  for 

A. 127 ft B. 267 ft C. 207 ft D. 167 ft

Mathematics

3Select the graph of the polar equation using symmetry, zeros, maximum r-values, and any other additional points. ? ?

A. Symmetric with respect to

Circle with radius 1.5

?


B. Symmetric with respect to

Circle with radius 1.5

?


C. Symmetric with respect to

Circle with radius 1.5

?


D. Symmetric with respect to

Circle with radius 1.5

?


E. Symmetric with respect to

Circle with radius 1.5

?


F. ?

Mathematics