(1) What is the slope of the line through (2,3) and (5,-9)? A. 2 B. 0 C.-4 D.-1.

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Presentation transcript:

(1) What is the slope of the line through (2,3) and (5,-9)? A. 2 B. 0 C.-4 D.-1

(2) What is the equation of the line through (2,3) with slope 2? A)2x -1 B)y= 3x + 2 C)-1 D)y= 2x - 1

(3) Is (-2,-5) on the line y=2x -1 A) Yes B) No

(4) What is the slope of the line y=3(x-2) + 1? What is the y-intercept? A) slope = 3, y-intercept -2 B) slope = 1, y-intercept (0,1) C) slope = 3, y-intercept (0,1) D) slope = 3, y-intercept (0,-5)

(5) For each line, is the slope positive, negative, zero? Are there any lines which don’t have a slope?

(6) Is either of these the graph of a function?

(7) What is the domain of

(8) Find f(1) + g(2), and f(g(1)) if x012 g(x)0103

(9) Find two functions f(x) and g(x) so that f(g(X)) Is the same as

(10) Using the triangle below, what are sin(x), cos(x), and tan(x)? x a b c

(11) Which of the following is a polynomial? What does its graph look like? Which is a rational function? Can any be simplified? A) B) C) D)

(12) Graph, in order, y = sin x y = 2 sin x y = -2 sin x y = sin x