SOLUTION: apply the quadratic formula to find the roots of the given function, and then graph the function. f(x) = x2 + 4 g(x) = x2 + x + 12

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: apply the quadratic formula to find the roots of the given function, and then graph the function. f(x) = x2 + 4 g(x) = x2 + x + 12       Log On


   

Question 125710: apply the quadratic formula to find the roots of the given function, and then graph the function.
f(x) = x2 + 4
g(x) = x2 + x + 12
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
f(x)=x^2+4
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
f(x)=(0+-sqrt[0^2-4*1*4])/2*1
f(x)=(0+-sqrt[0-16])/2
f(x)=(+-sqrt-16)/2
f(x)=+-4i/2
f(x)=+-2i answers.
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g(x)=x^2+x+12
g(x)=(-1+-sqrt[1^2-4*1*12])/2*1
g(x)=(-1+-sqrt[1-48])/2
g(x)=(-1+-sqrt[-47)/2
g(x)=(-1+-6.86i)/2
g(x=-12+-3.43i answers.