Find the Rate of Change in the Linear Equation 3-y=1/4x

Question

For the following straight line equation, state what is the rate of change?

3y=14x 3-y=\frac{1}{4}x

Video Solution

Solution Steps

00:00 Find the slope of the graph
00:04 Let's arrange the equation to match the linear equation
00:10 Isolate Y
00:25 The coefficient of X is the slope of the graph, which is the rate of change
00:28 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we'll follow the approach of rewriting the equation in slope-intercept form:

  • Step 1: Arrange the equation to isolate y y .
  • Step 2: Identify the coefficient of x x as the slope.
  • Step 3: Match the slope with the provided choices.

Let's work through these steps:
Step 1: Start with the original equation 3y=14x 3-y=\frac{1}{4}x . To solve for y y , add y y to both sides:
3=14x+y 3 = \frac{1}{4}x + y .
Subtract 14x \frac{1}{4}x from both sides to isolate y y :
y=14x+3 y = -\frac{1}{4}x + 3 .
Step 2: In the equation y=14x+3 y = -\frac{1}{4}x + 3 , the coefficient of x x is 14-\frac{1}{4}, which represents the slope or rate of change.
Step 3: Compare the calculated slope 14-\frac{1}{4} with the given choices. Choice 2, 14-\frac{1}{4}, is correct.

Therefore, the rate of change for the given line equation is 14 -\frac{1}{4} .

Answer

14 -\frac{1}{4}