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How to find the range of a function y= x^2+3x+4 x^2+4x+5

How to find the range of a function y=x^2+3x+4
                                                            x^2+4x+5
                                                            

Grade:10

1 Answers

ng29
1698 Points
6 years ago
its  quite simple just cross multiply the denominator with y , u will get quadratic equation in x
make discriminant of equation positive and equal to zero, now u will get quadratic in y
andu can solve the inequality to get the range
 
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