SOLUTION: The range of this equation -20x(squared)+10x+6

Question 373451: The range of this equation -20x(squared)+10x+6
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Range means all possible values of y or f(x). Here we have a parabola, concave down...its vertex will be a maximum value...
For ,
the value where x = -b/2a gives you the x coordinate of the max value...here that is
x = -10/-40 = 1/4
Plugging this into the equation, we get
-20(1/4)^2 + 10(1/4) + 6 =
-20/16 + 2.5 + 6 =
-1.25 + 8.5 =
7.25
RELATED QUESTIONS
10x cubed + 20x squared + x + 2 (answered by jim_thompson5910)

Please help me solve this problem... (answered by jim_thompson5910)

Solve. �10x + 1 � 10x = �20x �... (answered by checkley75)

Factor each of the following polynomials: 14x^2 - 20x + 6 My answer for this... (answered by checkley75)

I need the domain and range of... (answered by stanbon)

Solve: 10x^2 = 20x+30 What are the solutions to the equation? Can someone please... (answered by josmiceli)

Compute the discriminate. Determine the number and the type of solutions for the given... (answered by Nikki456)

Given that {{{ x^2-3x+2 }}} is a factor of {{{ x^4+kx^3-10x^2-20x+24 }}}, evaluate the... (answered by Boreal,ikleyn)

Given that {{{ x^2-3x+2 }}} is a factor of {{{ x^4 + kx^3 - 10x^2 - 20x+24 }}} evaluate... (answered by ikleyn,MathTherapy)