i need a unique parabola equation
@Vocaloid
@dude
It can be any parabolic equation?
yes but can u make it fairly easy
(x+2)(x+7)
thats it i thought thats the parabola once its factored
I mean you can also do \((x+7)^2\)
for example on a quiz i took it says The equation f(x) = 3x2 − 24x + 8 represents a parabola.
wouldnt the parabola be a f(x) equation
Ah
f(x) just means y, so that doesnt matter
ok but im still confused on how what u gave me is a parabola
ok and with this how do i find the y intercept and the zeros
Do you have to find the y-intercept and the zeroes algebraically? or can you do it graphically?
i need to have the numbers and then a picture of the graph for the equation
the points i see are (-7,0) (-2,0) and (-4.5,-6.25)
(-7,0) (-2,0) Are the zeroes ;p (-4.5,-6.25) is the vertex
ok but what is the y intercept
it says that the parabola needs to be in f(x) = ax2 + bx + c. form how do i put (x+2) (x+7) in that form
Oh you have to distribute \((x+2)(x+7)\) =>\(x^2+9x+14\)
so it would be f(x)=x^2+9x+14
Right
ok now it said describe the direction that it goes
Well the graph should explain that :P Does it curve upward or downward?
it curves upward because
the parabola equation uses positive numbers at the end
not quite, the `a` value in the equation determines its curve \(f(x)=ax+bx+c\) If `a` is positive then it curves up If `a` is negative it curves down
so it curves up because a is positive
Yes
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