Relationship: In mathematics a relationship is a connection between two variables; changing the value of one of the variables changes the value of the other
Variable: Letter or symbol used to represent a quantity that can change
Variation: A relationship between two variables, which can be expressed as a formula, a table of values, or as a graph
Direct variation: The relationship between two variables x and y with the form y= kx where k is a constant. A direct variation may be represented by a straight line graph which passes through the origin
Constant of variation: The value of k in the direct variation formula y= kx. K is equal to the slope of the line when the variation is graphed
Directly proportional: Means the same as varies directly
Y varies directly as x: Gives the formula y= kx for variation constant, k
Fixed cost: A cost that remains constant
Partial variation: The relationship between two variables x and y with the form y= kx + F where k is the constant of variation and F is a fixed number. A partial variation may be represented by a straight line graph with slope k and which passes through the point
Variable cost: A cost that changes depending upon the amount of goods purchased.
Direct squared variation: A relationship between two variables which can be written in the form y -kx squared where k is a constant. The shape of a graph showing this variation will be curved. The curve will begin at the origin.
Varies directly as the square: Y varies directly as the square of x gives the formula y= kx squared with constant of variation, k.
Inverse variation: A relationship between two variables which can be written in the form, where k is a constant. A graph showing this variation decreases as you move to the right along the horizontal axis.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment