How do I calculate the gradient of a line?
To calculate the gradient, divide the change in y by the change in x (m = Ξy/Ξx).
What does a positive gradient indicate?
A positive gradient indicates an upward slope, meaning y increases as x increases.
Can the gradient be negative?
Yes, a negative gradient indicates a downward slope, where y decreases as x increases.
How does the gradient relate to the equation y = mx + b?
In the equation y = mx + b, m represents the gradient, showing how much y changes for every unit change in x.
What is the gradient of a horizontal line?
The gradient of a horizontal line is 0, as there is no change in y regardless of the change in x.
How do I interpret a very steep gradient?
A very steep gradient indicates a rapid rate of change, where small changes in x result in large changes in y.
Can you explain what the gradient means in real-world applications?
In real-world applications, the gradient can represent rates of change like velocity (change in distance over time) or cost per unit (change in total cost over quantity).