What is the formula for finding a y-intersect and slope? i need help thankyou

The general formula for a straight line is
y = mx + b
where m is the slope and b is the y intercept.

To find the slope (m) and y-intercept (b) of a straight line, you will need some information about the line.

If you have two points on the line (x₁, y₁) and (x₂, y₂), you can determine the slope using the formula:

m = (y₂ - y₁) / (x₂ - x₁)

Once you have the slope (m), you can substitute it into the general equation of a straight line (y = mx + b) along with one of the points (x, y) to solve for the y-intercept (b).

So, the steps to find the slope and y-intercept are:
1. Identify two points on the line, let's say (x₁, y₁) and (x₂, y₂).
2. Use the slope formula: m = (y₂ - y₁) / (x₂ - x₁) to calculate the slope.
3. Substitute the values of the slope (m) and one of the points (x, y) into the general equation of a straight line, y = mx + b, and solve for b.
4. The resulting value of b will be the y-intercept.

Note that if the equation of the line is already given in the form y = mx + b, you can directly read the slope (m) and y-intercept (b) from the equation.

I hope this explanation helps you understand how to find the slope and y-intercept of a straight line.