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 September 18th, 2009, 06:45 PM #1 Newbie   Joined: Sep 2009 Posts: 23 Thanks: 0 I need help on a few slope questions If someone can help me out with this it'd be greatly appreciated, thanks!! 1. If a line has an undefined slope, it is parallel to a line that has zero slope. true, false, neither 2. When slope m > 0, the line is the graph of a? 3. Given y = mx + b where does the line cross the y-axis? 4. Find the point-slope form of a line with slope m = 2 that passes through the point (-1, 3). 5. Find the slope-intercept form of a line with a slope m = 3 that passes through the point (0, 2). September 18th, 2009, 07:11 PM #2 Global Moderator   Joined: Oct 2008 From: London, Ontario, Canada - The Forest City Posts: 7,958 Thanks: 1146 Math Focus: Elementary mathematics and beyond Re: I need help on a few slope questions 1. False. It is perpendicular. 2. Linear function of x. (increasing) 3. At b. This is the y value when x = 0. 4. Point-slope form of the equation of a line: y - y_1 = m(x - x_1) ? y_1 = 3 ? x_1 = -1 ?y - 3 = 2(x +1). Slope = (y - y_1)/(x - x_1). 5. Slope-intercept form of the equation of a line: y = mx + b ? y = 3x + b ?2 = 3(0) + b ?b = 2 ?y = 3x + 2. September 18th, 2009, 07:33 PM #3 Newbie   Joined: Sep 2009 Posts: 23 Thanks: 0 Re: I need help on a few slope questions thanks but for question 2 the choices i have are below, so which would it be? a. constant function b. decreasing function c. increasing function d. not a function September 18th, 2009, 07:36 PM #4 Global Moderator   Joined: Oct 2008 From: London, Ontario, Canada - The Forest City Posts: 7,958 Thanks: 1146 Math Focus: Elementary mathematics and beyond Re: I need help on a few slope questions The answer would be "c" because as we move along the x-axis to the right the value of y is increasing, that is, as x increases, y increases. September 18th, 2009, 07:48 PM #5 Newbie   Joined: Sep 2009 Posts: 23 Thanks: 0 Re: I need help on a few slope questions thanks, and thanks for explaining it rather than just answering it and me still having no clue how to work these problems Tags questions, slope Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post pomazebog Algebra 5 January 8th, 2012 07:23 PM EkajArmstro Calculus 5 September 18th, 2011 10:16 AM happy8588 Calculus 3 September 9th, 2010 05:13 AM AlwaysALilLost Algebra 2 May 8th, 2007 05:01 PM pomazebog Calculus 1 December 31st, 1969 04:00 PM

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