SOLUTION: Write the quadratic equation whose rights are -4 and 1 and who's leading coefficient is five

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Write the quadratic equation whose rights are -4 and 1 and who's leading coefficient is five       Log On


   

Question 1152328: Write the quadratic equation whose rights are -4 and 1 and who's leading coefficient is five
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
the quadratic equation whose roots are x%5B1%5D=-4 and x%5B2%5D=1 and who's leading coefficient is a=5 will be:
f%28x%29=a%28x-x%5B1%5D%29%28x-x%5B2%5D%29
f%28x%29=5%28x-%28-4%29%29%28x-1%29
f%28x%29=5%28x%2B4%29%28x-1%29
f%28x%29=5%28x%5E2+%2B+3x+-+4%29
f%28x%29=5x%5E2+%2B+15x+-+20=> answer

+graph%28600%2C+600%2C+-10%2C+10%2C+-35%2C+10%2C+5x%5E2+%2B+15x+-+20%29+