Asked by Jenny
The graph of the function f(X)= 4x^2 -17x-9 has two X intercepts. What is the value of the larger X intercept to one decimal place?
Answers
Answered by
bobpursley
f(x)=4x^2-17x-9
x=(17+- sqrt(17^2+9*16))/8
larger is (17+sqrt 433)/8
x=(17+- sqrt(17^2+9*16))/8
larger is (17+sqrt 433)/8
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