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RAN3. Draw the graph of the polynomial x -5x-6, find the zeroes and justify your answer. (R.V) |
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Answer» Clearly, it is a parabolaIt is upward open as coefficient of x >0 vertices = (-b/2a , - D/ 4a), where a,b are coefficients of x² and x , and c is constant term. (a=1, b= -5 , c =-6)vertices = (-b/2a , -(b² - 4ac)/2a) =(2.5 , -12.5)So we get the following graph. Also , from graph, the x-axis is cut at -1 and 6, which are the roots. |
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