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What is the value of x in this equation y equals 3x2?
x = +/- sqrt(y/3)
How do you find the magnitude of the y-intercept?
-- In the equation of the graph, set x=0. -- Solve the equation for 'y'. -- The value you get for 'y' when x=0 is the y-intercept.
What is the value of x in the equation y 3x2 6x - 12?
The value of x is 2
Is the x dependent on the y or is it the other way around?
In a mathematical equation or relationship, the variables x and y can be dependent on each other, independent of each other, or one can be dependent on the other. The direction of dependence between x and y is determined by the specific equation or context in which they are used. For example, in the equation y = 2x, y is dependent on x because its value is determined by the value of x. Conversely, in the equation x = y^2, x is dependent on y as its value is determined by the value of y.
How do you tell if an equation is a function?
Let's assume (for simplicity) that "y" is a function of "x". That means that for every value of "x", there is a unique value of "y". In this case, if the equation can be solved for "y", it is a function. Some equations are difficult or impossible to solve explicitly for "y"; in this case, "y" may still be a function of "x", if for every value of "x" only a single value of "y" is possible for the equation. However, if this is the case, it may be difficult to verify.
