What is the vertex for the graph of y = 2x2 + 12x + 10?

(−3, −8)

(−3, −44)

(3, 64)

(3, 58)

Question

What is the vertex for the graph of y = 2x2 + 12x + 10?

(−3, −8)

 (−3, −44)

 (3, 64)

 (3, 58)

dumbcow · Answer

do you want the short answer or long answer :)

anonymous · Answer

Short would be good for now please!:)

anonymous · Answer

(-3,-8)

dumbcow · Answer

ok formula for "x" component of vertex is:

x = -b/2a   (where a,b,c are coefficients of equation)

x = -12/4 = -3

plug in x =-3 to get "y" component

anonymous · Answer

just differentiate the above eq.. at the point of vertex the slope is 0 for a quadratic function equate ur answer to 0 to get x component and substitute it in ur function to get the y component

dumbcow · Answer

haha i dont think calculus has been learned yet

anonymous · Answer

the formula u gave is itself derived from calculus

dumbcow · Answer

i know that but students learn formula first then how its derived later....thats how it always works

aravindg · Answer

he formula can also be got by completing the square

anonymous · Answer

ok

dumbcow · Answer

finding vertex of parabola is an algebra or pre-calc course

aravindg · Answer

*The