Any function of the form Y = cX where X and Y are variables and c is a constant.
No.
Direct
YES...A direct variation is a linear relationship in which y-intercept is always 0.
yes y=kx is the formula for direct variation, and k represents constant of variation which can also be called slope.
k is the constant of variation and is the gradient (slope) of the relevant graph.
No.
yes * * * * * No, it is not. In a direct variation, if one of the variables is 0, the other MUST also be 0. In a linear function, they will be the intercepts.
Direct
direct square variation is a function that relates the same or equal constant ratio. It is a function that is typically used in different kinds of algebra.
Y=1/x
Direct variation means that a linear function can be written as y = kx. The y-intercept must be (0, 0). The constant, k, is the slope.
YES...A direct variation is a linear relationship in which y-intercept is always 0.
yes y=kx is the formula for direct variation, and k represents constant of variation which can also be called slope.
k is the constant of variation and is the gradient (slope) of the relevant graph.
An equation in slope-intercept form (y = mx + b) represents a direct variation only when the y-intercept (b) is zero, making it (y = mx). If (b) is non-zero, the equation does not represent a direct variation, which is defined as a linear relationship that passes through the origin. Therefore, it is "sometimes" true that an equation in slope-intercept form represents a direct variation, depending on the value of (b).
To determine if ( y = kx ) represents a direct variation, ( y ) must vary directly as ( x ) with a constant ratio ( k ). The expression ( y = 4x ) indicates that ( y ) is directly proportional to ( x ) with a constant of variation ( k = 4 ). Thus, yes, ( y = 4x ) is indeed a direct variation.
Tell whether the equation -4x+ 2y = -2 represents a direct variation. If so, identify the constant of variation.