J Jodene222 Junior Member Joined Aug 1, 2007 Messages 51 Aug 19, 2007 #1 Find and graph the solution set of x^2-1>x+5 I know I need to make one side 0 and factor: (x+2) (x-3) >0 I need help knowing what t do next. Thank you!
Find and graph the solution set of x^2-1>x+5 I know I need to make one side 0 and factor: (x+2) (x-3) >0 I need help knowing what t do next. Thank you!
S soroban Elite Member Joined Jan 28, 2005 Messages 5,584 Aug 20, 2007 #2 Re: help He;llo, Jodene! Find and graph the solution set of: .x² - 1 .> .x + 5 I know I need to make one side 0 and factor: .(x + 2) (x - 3) .> .0 Click to expand... They asked for a graph. We have the function: .y .= .(x + 2)(x - 3) . . and we are asked: "When is the graph above the x-axis?" We find that it is an up-opening parabola with x-intercepts -2 and 3. Looking at the sketch, the solution is: .x < -2 .or .x > 3. . . or: .(-∞, -2) U (3, ∞)
Re: help He;llo, Jodene! Find and graph the solution set of: .x² - 1 .> .x + 5 I know I need to make one side 0 and factor: .(x + 2) (x - 3) .> .0 Click to expand... They asked for a graph. We have the function: .y .= .(x + 2)(x - 3) . . and we are asked: "When is the graph above the x-axis?" We find that it is an up-opening parabola with x-intercepts -2 and 3. Looking at the sketch, the solution is: .x < -2 .or .x > 3. . . or: .(-∞, -2) U (3, ∞)
