Slope is often referred to as the rate of change and while this is technically true it’s not the whole story. Slope is actually the ratio of the vertical change (rise) to the horizontal change (run) between two points. You can calculate slope by picking any two points on a line and dividing the vertical change (rise) by the horizontal change (run).

For example let’s say we have the points (24) and (610). The vertical change between these points is 6 (10-4) and the horizontal change is 4 (6-2). So the slope of this line is 6/4 or 1.5.

It’s important to note that the order of the points matters when calculating slope. If we switch the order of the points to (610) and (24) the vertical change is still 6 (10-4) but the horizontal change is now -4 (2-6). So the slope of this line is 6/-4 or -1.5.

The negative sign is important because it tells us that the line is going down as we move from left to right. If we didn’t have the negative sign we would think the line was going up (1.5 is greater than zero after all).

So to recap slope is the ratio of the vertical change to the horizontal change between two points. The sign of the slope tells us whether the line is going up or down.

Now that we know how to calculate slope let’s talk about what it actually means.

Slope is a measure of how steep a line is. The steeper the line the higher the slope. And conversely the shallower the line the lower the slope.

Let’s take a look at a few examples.

This line has a slope of zero. It’s perfectly flat so the vertical change is zero no matter how far we travel horizontally.

This line has a small positive slope. It’s not perfectly flat but it’s pretty close. The vertical change is small compared to the horizontal change.

This line has a large positive slope. It’s significantly not flat. The vertical change is large compared to the horizontal change.

This line has a small negative slope. It’s going down but not by very much. The vertical change is small compared to the horizontal change.

This line has a large negative slope. It’s going down by a lot. The vertical change is large compared to the horizontal change.

Now that we know how to calculate slope and what it means let’s talk about why it’s important.

Slope is important because it tells us how fast a line is moving. A line with a large positive slope is moving up quickly and a line with a large negative slope is moving down quickly.

But slope also tells us about direction. A line with a positive slope is moving in the positive direction (up) and a line with a negative slope is moving in the negative direction (down).

This is why slope is often referred to as the rate of change. Not only does it tell us how fast a line is moving but it also tells us the direction in which it’s moving.

Now that we know all about slope let’s put it to use.

There are many real-world situations where slope is important.

Consider a skier going down a hill. The steepness of the hill will determine the skier’s speed. The steeper the hill the faster the skier will go.

Or consider a car driving up a hill. The steepness of the hill will determine the car’s speed. The steeper the hill the slower the car will go.

In both of these cases slope is important because it tells us about the speed of the object.

But slope can also be important for more abstract things like data in a graph.

For example let’s say we have a graph of the number of people who have signed up for a new social media platform over time.

The slope of this line would tell us how quickly the number of people signing up is increasing. A large positive slope would mean that the number of people signing up is increasing quickly and a large negative slope would mean that the number of people signing up is decreasing quickly.

Slope can also be used to predict future values. For example if we know the slope of the line in the graph above we could use it to predict how many people will have signed up for the social media platform in the future.

This is just a small taste of the things you can do with slope. There’s a lot more to learn but we hope this has been a helpful introduction.

## What is slope?

Slope is the rate of change.

## What is the definition of rate of change?

The rate of change is the amount by which a quantity changes with respect to another quantity.

## What is an example of slope?

An example of slope would be if the rate of change of quantity A with respect to quantity B was 2.

## How do you calculate slope?

Slope is calculated by taking the difference in y-values and dividing it by the difference in x-values.

## What is the formula for slope?

Slope = (y2-y1)/(x2-x1)

## What is the difference between y2-y1 and x2-x1?

The difference between y2-y1 is the change in the y-value while the difference between x2-x1 is the change in the x-value.

## How do you interpret slope?

Slope can be interpreted as the rate of change of a quantity with respect to another quantity.

## What is an example of a situation where slope would be useful?

Slope would be useful in a situation where you are trying to determine how the change in one quantity affects the other quantity.

## What is the y-intercept?

The y-intercept is the point where the line intersects with the y-axis.

## What is the x-intercept?

The x-intercept is the point where the line intersects with the x-axis.

## What is the slope-intercept form?

The slope-intercept form is a way of writing the equation of a line in which the slope and the y-intercept are given.

## What is the standard form?

The standard form is a way of writing the equation of a line in which the coefficients of the x and y terms are given.

## How do you convert from slope-intercept form to standard form?

To convert from slope-intercept form to standard form you need to solve for y in terms of x.

## How do you convert from standard form to slope-intercept form?

To convert from standard form to slope-intercept form you need to solve for y in terms of x.

## What is the point-slope form?

The point-slope form is a way of writing the equation of a line in which the slope and one point on the line are given.