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anonymous
 5 years ago
I need help with this
f(x)=2x^2+8x8
anonymous
 5 years ago
I need help with this f(x)=2x^2+8x8

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0graph each parabola and give its vertex,axis,xintercepts,and yintercept.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0x intercept set y=0 y intercept set x = 0 Vortex can be found by using the equation (2b/a) = x where a = 2 b = +8 in this case, to find the y value sub the x value you get from that equation and you have your vortex To graph just make a table of x values to from 3 to +3 and sub them into the function to see what y values you get then graph the points and intercepts

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0use quadric formula solve\[\frac{b \pm \sqrt{b^2(4*a*c)}}{2*a}\]a=2 b=8 c=8

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0You would use the quadratic formula to solve the x intercepts

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0also whenever dealing with the quadratic formula solve what is in the radical first, dont just punch all that stuff into your calculator

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0How i can write ± in my calculator???

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0solve it algebraically don't use your calculator

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Finally I got it Thanks guys
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