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Hela
Questions (1)
Given the quadratic function y=x^2-x+k-1 and line y=x+1, find the number of points that their graphs have in common. (Assume
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Answers (1)
Find the discriminant: D=b^2-4ac if D>0, there are two real number solutions if D=0, there is one solution if D0 Therefore, there are 2 real number solutions. 2) 2x^2 - 20x + 50 D=400-400 = 0 Therefore, there is one solution.
