Analyzing Rate of Change: Compare Points from (-2,1) to (1,7) in Function Table

Question

Given a table showing points on the edge of the function, determine whether the rate of change is uniform or not.

XY-2-1011357

Video Solution

Solution Steps

00:00 Determine if the rate of change is uniform?
00:07 It appears that the change in X values is always equal
00:12 It appears that the change in Y values is always equal
00:15 Therefore the rate of change is uniform
00:18 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Calculate the rate of change between each consecutive pair of points.
  • Step 2: Compare these rates to check for uniformity.

Now, let's work through each step:
Step 1: Calculate the rate of change for each consecutive pair of points:
- Between (2,1)(-2, 1) and (1,3)(-1, 3):
311(2)=21=2\frac{3 - 1}{-1 - (-2)} = \frac{2}{1} = 2
- Between (1,3)(-1, 3) and (0,5) (0, 5):
530(1)=21=2\frac{5 - 3}{0 - (-1)} = \frac{2}{1} = 2
- Between (0,5) (0, 5) and (1,7) (1, 7):
7510=21=2\frac{7 - 5}{1 - 0} = \frac{2}{1} = 2

Step 2: Compare the calculated rates of change.
We observe that the rate of change is constantly 22 for each pair of points.

Therefore, the solution to the problem is that the rate of change is Uniform.

Answer

Uniform