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Kurlyash
13.08.2020 •
Mathematics
Find the equation of a parabola that has a vertex (3,5) and passes through the point (1,13)
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Ответ:
y = 2( x-3)^2 +5
Step-by-step explanation:
The vertex form of a parabolic functions is
y = a( x-h)^2 +k
where (h,k) is the vertex
y = a( x-3)^2 +5
Substituting the point into the equation
13 = a( 1-3)^2 +5
13 = a*( -2)^2 +5
13 = 4a +5
Subtract 5
8 = 4a
Divide by 4
8/4 =a
2=a
y = 2( x-3)^2 +5
Ответ:
tangent
Step-by-step explanation:
A common way to remember this is SOHCAHTOA:
SOH means sine = opposite over the hypotenuse
CAH means cosine = adjacent over the hypotenuse
TOA mean tangent = opposite over adjacent