Math Problem Statement

The graph of a function is shown on the coordinate plane below. Identify the rate of change of the function.

Solution

The graph provided shows a straight line passing through two points. To identify the rate of change (slope) of the function, we use the formula for the slope between two points (x1,y1)(x_1, y_1) and (x2,y2)(x_2, y_2):

m=y2y1x2x1m = \frac{y_2 - y_1}{x_2 - x_1}

Let's choose two clear points on the line from the graph:

  • Point 1: (3,5)(-3, -5)
  • Point 2: (3,5)(3, 5)

Now, apply the slope formula:

m=5(5)3(3)=5+53+3=106=53m = \frac{5 - (-5)}{3 - (-3)} = \frac{5 + 5}{3 + 3} = \frac{10}{6} = \frac{5}{3}

Thus, the rate of change (slope) of the function is 53\frac{5}{3}.

Would you like more details or have any other questions?

Here are some related questions for further practice:

  1. How do you interpret the slope of a line in real-world scenarios?
  2. What does it mean when the slope of a line is positive, negative, zero, or undefined?
  3. How can you calculate the slope of a vertical or horizontal line?
  4. What is the equation of a line with a slope of 53\frac{5}{3} and a y-intercept of 2?
  5. How would the graph change if the slope were 23\frac{2}{3}?

Tip: Always pick points that are clearly visible and easy to read from the graph to avoid errors in calculating the slope.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Functions
Slope

Formulas

Slope formula: m = (y2 - y1) / (x2 - x1)

Theorems

Slope of a line theorem

Suitable Grade Level

Grades 8-10