Calculus can be a daunting subject for many, especially when it comes to finding the derivative of a graph without an equation. However, with some basic knowledge and a few simple steps, you can learn how to find the derivative of a graph without an equation.

**How To Find The Derivative Of A Graph Without An Equation?**

**Step 1: Identify The Point You Want To Find The Derivative At**

The first step is to identify the point on the graph where you want to find the derivative. This point is known as the point of tangency, and it is where the slope of the tangent line is equal to the derivative of the function at that point.

**Step 2: Draw A Tangent Line At The Point Of Tangency**

Next, draw a tangent line to the curve at the point of tangency. The tangent line should only touch the curve at one point, and it should be as close as possible to the curve at that point.

**Step 3: Find The Slope Of The Tangent Line**

The slope of the tangent line is equal to the derivative of the function at the point of tangency. To find the slope of the tangent line, you can use the slope formula:

slope = (y2 – y1) / (x2 – x1)

Where (x1, y1) is the point of tangency and (x2, y2) is another point on the tangent line.

**Step 4: Repeat For Other Points**

If you need to find the derivative at multiple points, repeat the above steps for each point. You can also use a ruler or straight edge to draw the tangent line more accurately.

**Step 5: Use The Derivative To Analyze The Function**

Once you have found the derivative of the function at the desired points, you can use it to analyze the function. A positive derivative indicates that the function is increasing, while a negative derivative indicates that the function is decreasing. A derivative of zero indicates a point of maximum or minimum.

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**FAQ**

**How To Find A Derivative Of A Function On A Graph Without An Equation?**

You can find derivatives at any point by drawing a tangent line. Delta y divided by delta x of that tangent line is the derivative of a graph at that point.

**How Do You Find Where The Derivative Of A Function Does Not Exist?**

Therefore, if the limit doesn’t exist, then the derivative doesn’t exist either. There are two general situations where this might happen: When the curve doesn’t have a tangent line because of a discontinuity or sharp corner. When the tangent line has an infinite slope (i.e. there is a vertical inflection point).

**How Do You Find The Equation Of A Derivative?**

We can compute the derivative of f(x) using the limit definition of derivatives with the following steps:

- Find f(x + h).
- Plug f(x + h), f(x), and h into the limit definition of a derivative.
- Simplify the difference quotient.
- Take the limit, as h approaches 0, of the simplified difference quotient.

**What Is A Derivative With An Unknown Function?**

The equation that contains some derivatives of an unknown function is called a differential equation. If an equation involves the derivative of one variable concerning another, then the former is called a dependent variable and the latter is called an independent variable.

**Conclusion**

In conclusion, finding the derivative of a graph without an equation may seem daunting at first, but it is a simple process that involves identifying the point of tangency, drawing a tangent line, finding its slope, and repeating for other points. With this knowledge, you can analyze the function and gain a deeper understanding of calculus.

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