Show that f and g are inverses of each other by verifying that f(g(x)) = x = g(f(x)).f(x) = 
; g(x) = x2
What will be an ideal response?
f(g(x)) = f(x2) = 
= x
g(f(x)) = g(
) = (
)2 = x
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?Which of the following is not true about perpendicular lines? ?
A. ?The product of their slopes is equal to -1. B. ?Ifm1 andm2 are slopes of two different lines, and the lines are perpendicular to each other, then m2 is the reciprocal of m1. C. ?Slopes of perpendicular lines are reciprocals of each other. D. ?Perpendicular lines intersect at right angles. E. ?Perpendicular lines break a region into four equal parts.
Find the general form of the equation of the the circle.Center at the point (-4, -3); containing the point (-3, 3)
A. x2 + y2 - 6x + 6y - 12 = 0 B. x2 + y2 + 6x - 6y - 17 = 0 C. x2 + y2 + 8x + 6y - 12 = 0 D. x2 + y2 + 6x + 8y - 17 = 0
Solve.22.5 ? x = 324
A. 14.4 B. 1.44 C. 15.4 D. 144
Solve the system of equations.
A. x = -2, y = 5, z = -4 B. x = -4, y = 5, z = -2 C. inconsistent (no solution) D. x = -4, y = -2, z = 5