##### Which equation is in slope-intercept form and represents a line with slope 0 thr

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30. An empty 6-gal water jug weighs 0.5 lb. With 3 c of water inside, the jug weighs 2 lb. Which equation models the jugâ€™s weight y when it contains x cups of water?

 A. y=0.5x-0.5 B. y=-0.5x+0.5 C. y=0.5x+0.5 D. y=-0.5x-0.5
31. What is the slope for the equation -1/2x-y=3/4

 A. 3/4 B. -3/4 C. 1/2 D. -1/2

33. Which direction would the graph of y=-lx+2l+3 open?

 A. right B. down C. left D. up
34. Which equation is in slope-intercept form and represents a line with slope 0 through the point (2, 3)?

 A. y=3 B. x=2 C. y=x+3 D y=x+2
May 12th, 2015

30; the answer is C  (plug 3 in and you get the 2 pound weight)

31; the answer is D (solve for y:  y = 1/2 x + 3/4)

33; the answer is B (the negative in front of the absolute value flips the "V" of the graph upside down.)

34; the answer is A (horizontal lines have slopes of zero.  y = 3 is horizontal and passes through 2,3)

Hope that helps!

May 12th, 2015

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May 12th, 2015
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May 12th, 2015
May 26th, 2017
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