Please help
Is y =- 0.6x+5 and y= 0.4x-10 a positive or negative correlation
These two equations represent lines with slopes of -0.6 and 0.4, which are both non-zero values.
A negative correlation exists when the values of one variable increase while the values of the other variable decrease. This occurs if both slopes have the same sign (both positive or both negative).
In this case, with one line having a negative slope (-0.6) and the other having a positive slope (0.4), these lines do not have the same sign for their slopes. Therefore, these equations represent a scenario where one line has a negative correlation and the other has a positive correlation.
So is y = - 0.6x +5 negative or positive and is y = 0.4x -10 negative or positive
In the equation y = -0.6x + 5, the slope is -0.6, which is a negative value. Therefore, this equation represents a negative correlation.
In the equation y = 0.4x - 10, the slope is 0.4, which is a positive value. Therefore, this equation represents a positive correlation.