Let f(x)=2/5x^2-2. the function g(x) is a vertical stretch of f(x) by the factor 2. what is the equation of g(x)?

Which of the following statements is not true? a.parallel lines are lines in the same plane that never intersect. b.congruent figures have the same shape and same size angles and sides. c.similar figures must have the same shape and the same size. d.a rotation is when you turn a figure around a certain point.

Solve 3x-18=2y and 5x-6y=6 by elimination show work

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.