Which of the following is true?
the rate of change of the function g(x) is -2.
20
the rate of change of f(x)is 14 times the rate of change of g(x).
the rate of change of f(x) is greater than the rate of change of g(x).
the product of the rate of changes of f(x) and g(x) is -6.

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.

40 points which is the equation of a line perpendicular to the line with the equation: y = 1/4x + 2 a : y = -4x - 7 b : y = 4x + 2 c : y = 1/4x - 1/2 d : y = -1/4x + 3