## What does it mean if x varies directly to Y?

1 Expert Answer saying “x varies directly as y” means as y increases, x will increase and as y decreases, x will decrease too.

**How do you find direct variation when given X and Y?**

- The equation for direct variation is y=kx.
- The equation for direct variation is y=kx.
- The equation for direct variation is y=kx.
- The equation for direct variation is y=kx.
- We can just plug 4 in for y and 2 in for x to find the value of k.

### What is the formula for varies directly?

The direct variation equation is a linear equation in two variables and is given by y = kx where k is the constant proportionality. The direct variation graph in a coordinate plane is a straight line. The ratio of two quantities in a direct variation is a constant.

**What does the statement y varies inversely as x describe?**

The phrase “ y varies inversely as x” or “ y is inversely proportional to x” means that as x gets bigger, y gets smaller, or vice versa. This concept is translated in two ways. yx = k for some constant k, called the constant of proportionality. Use this translation if the constant is desired.

#### How do you write y varies inversely as x?

An inverse variation can be expressed by the equation xy=k or y=kx . That is, y varies inversely as x if there is some nonzero constant k such that, xy = k or y=kx where x≠0 and y≠0 .

**What is direct variation and inverse variation?**

Direct variation is a linear function defined by an equation of the form y = kx when x is not equal to zero. Inverse variation is a nonlinear function defined by an equation of the form xy = k when x is not equal to zero and k is a nonzero real number constant.

## What does it mean if something varies jointly?

Joint variation describes a situation where one variable depends on two (or more) other variables, and varies directly as each of them when the others are held constant. We say z varies jointly as x and y if. z=kxy. for some constant k.

**How do you solve combined variations?**

Combined variation is a mix of direct and indirect variation. The joint variation equation is z=kxmyn where k≠0 and m>0,n>0.

### What is the formula of varies directly and inversely?

For direct variation, use the equation y = kx, where k is the constant of proportionality. For inverse variation, use the equation y = k/x, again, with k as the constant of proportionality.

**Does y vary directly with X?**

We say y varies directly with x (or as x , in some textbooks) if: for some constant k , called the constant of variation or constant of proportionality . (Some textbooks describe direct variation by saying ” y varies directly as x “, ” y varies proportionally as x “, or ” y is directly proportional to x .”)

#### What is the X and y equal if x?

To check an answer to a system of equations containing x and y, enter the two equations separated by a semicolon, followed by the @ sign and an ordered pair containing your x-value and y-value. Example: x+y=7; x+2y=11 @ (3,4). Tablet Mode If you are using a tablet such as the iPad, enter Tablet Mode to display a touch keypad. Related Articles

**What does it mean for X and Y to vary inversely?**

The statement “ y varies inversely as x means that when x increases, y decreases by the same factor. In other words, the expression xy is constant: xy = k. How do you know if X and Y show direct variation? y varies directly as x if y = kx for some constant, k.

## Does y vary directly as X in this function?

Does y vary directly with x? If so, write function rule 11. x: 3,5,8 y: 12,20,32. Yes, y=4x. 12. x: 6,9,15 y:11,14,20. No. When y=2 and x=6, find y when x=¾. Function rule: y=x/3 y=.25. LEVEL THREE Always, Sometimes, or Never True? 14+3x-7=7x+7-4x. Always. 8+6x-10=10x+11-4x. Never. Solve the Function 6(x-4)+3x=10x+11-4x. x=2. 2 |14-4x|=4x+4. x