rr.dun.dun
Member
yes.Surf's zUp!! said:x = -b/2a is the equation you're referring to ie the x value in the line of symmetry?
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yes.Surf's zUp!! said:x = -b/2a is the equation you're referring to ie the x value in the line of symmetry?
ah okay. thank you so muchPC said:No. That rule only refers to a quadratic function. It gives the x value for the maximum or minimum value.
Remember, you still have to subsitute this value into the original function to find the y value which is the actual maximum or minimum value.
For an exponential expression, there really isn't a maximum or minimum value. The function keeps increasing (to ∞) at one end and decreasing (approaches 0) at the other.
x = -b/2a is the equation you're referring to ie the x value in the line of symmetry?rr.dun.dun said:Does anyone know if I'm able to use this formula -
-b
2a
to find the mininum or maximum value, for not just the quadratic function but for the exponential one as well?