Find the function value.Let f(x) = 3x. Find f(2).
A. 8
B. 9
C. 6
D. 27
Answer: B
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Parametric equations and and a parameter interval for the motion of a particle in the xy-plane are given. Identify the particle's path by finding a Cartesian equation for it. Graph the Cartesian equation. Indicate the portion of the graph traced by the particle and the direction of motion.x = 2t + 4, y = 6t + 14, -? ? t ? ?
A. y = 3x + 2; Entire line, from right to left
B. y = 3x - 2; Entire line, from right to left
C. y = 3x + 2; Entire line, from left to right
D. y = 3x - 2; Entire line, from left to right
Combine like terms.8xy + 5y2 - 4xy + 8x2
A. -32xy + 40x2y2 B. 17x2 + 17xy + 17y2 C. 8x2 + 4xy + 5y2 D. 4xy + 40x2y2
Use the properties of limits to find the indicated limit.
(4 - 5x)
A. 4 B. 0 C. -1 D. does not exist
Write the whole number in standard form.Six hundred thirty-eight thousand, nine hundred ninety-seven
A. 638,997 B. 638,997,000 C. 638,977 D. 638,000