Algebra-1

Question Analysis
This question requires students to calculate the constant rate of change (slope) using two points on a line. The formula for the slope is .

Key Concept Explanation
The constant rate of change (slope) can be determined by the ratio of the change in to the change in between any two points on the line. This ratio remains constant for a linear relationship.

Step-by-step Solution
1. Identify the coordinates of the two points: (4, 8) and (6, 18).
2. Apply the formula for the constant rate of change:

Click "Show Answer" to reveal the answer and analysis