Write the given statement into mathematical expression. The weight of an object on earth (E) varies directly as the weight of the same object on the moon (m)
E = km
Change the given function to vertex form.
y=2(x−2)^2+1
Change the given function to standard form.
y=2x^2 − 8x + 6
Write the given statement into mathematical expression. a varies directly as b
a=kb
GIVE THE STANDARD FORM OF QUADRATIC FUNCTION.
f(x)=ax^2+bx+c
GIVE THE RESULT AND THE INTERVAL NOTATION.
False, True, False - Interval Notation: [-5, 4]
Write the given mathematical expression into words. b= kc
b varies directly as c
TRUE/FALSE: Inequality is the beginning and ending numbers of interval.
FALSE
The use for ≤ or ≥ means that the specified values for a and b are not included.
FALSE
If c varies directly as the square of d, and c=1 when d=4, find the constant of variation.
k = 1/16
y varies directly as x. if y = 12 when x = 4, what is x when y is 36?
x is 12 wheny y = 36
Write the given statement into mathematical expression. The work done (d) varies directly as the number of men (m) at work.
d=km
The graph of a quadratic function is _____.
Parabola
The vertical line that passes through the vertex and divides the parabola equally.
Axis of Symmetry
If a varies directly as the square of b, and a=6 when b=9, find the constant of variation.
k = 2/27
Change the given function to vertex form.
y=(x−1)^2−?
If y varies directly as x and y=15 when x=24, find the constant of variation.
k = 5/8
GIVE THE INTERVAL NOTATION OF:
(-∞,−4) ∪ [6,∞)
It is a situation in which two quantities-such as hours, pay, or distance and time –increase at the same rate.
Direct Variation
It is a function whose degree is 2 and where y is not always exactly equal to the function
Quadratic Function
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