X is partly constant and partly varies with y.when y=3,x=7
What are we finding?
The equation?
let y = kx
for the given values:
3 = 7k
k = 3/7
so y = (3/7)x
or x = (7/3)y
or y/x = 3/7
or y : x = 3 : 7
etc
25
To understand the relationship between X and Y, we need more data points. Could you provide another pair of values for Y and X?
To understand the relationship between X and Y, we can use the given information that when Y is equal to 3, X is equal to 7. Since X is partly constant and partly varies with Y, we can assume that there is a constant value involved and a variable part.
Let's denote the constant value as a and the varying part as b. So, X can be expressed as:
X = a + bY
Now, using the given information, substitute the values of X and Y:
7 = a + b(3)
Simplifying this equation, we have:
7 = a + 3b
Since we don't have any further information, we cannot determine the exact values of a and b. However, we can solve for one variable in terms of the other.
Rearranging the equation, we have:
3b = 7 - a
Dividing both sides by 3:
b = (7 - a) / 3
This equation represents how the varying part of X (b) changes with respect to the constant part (a). To determine the relationship between X and Y for any given value of Y, you need to know the values of a and b.