Math Problem Statement

Given the table below write a linear equation that define y in terms of x additionally give the coordinates of the y-intercept of that function

Given the table below, write a linear equation that defines y in terms of x. Additionally, give the coordinates of the y-intercept of that function.

Solution

To find the linear equation that defines yy in terms of xx, follow these steps:

Step 1: Identify Two Points

From the table, we have the points:
(0,5),(1,6),(2,7),(3,8)(0,5), (1,6), (2,7), (3,8)

Step 2: Find the Slope mm

The slope formula is:

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

Using points (0,5)(0,5) and (1,6)(1,6):

m=6510=11=1m = \frac{6 - 5}{1 - 0} = \frac{1}{1} = 1

Step 3: Use the Slope-Intercept Form

The general equation of a line is:

y=mx+by = mx + b

We found m=1m = 1. Now, using the point (0,5)(0,5):

5=1(0)+b5 = 1(0) + b

b=5b = 5

Step 4: Write the Equation

y=x+5y = x + 5

Step 5: Identify the y-Intercept

The y-intercept is where x=0x = 0, which is:

(0,5)(0,5)

Final Answer:

Equation: y=x+5y = x + 5
y-Intercept: (0,5)(0,5)

Would you like further explanation or examples?

Related Questions:

  1. How do you determine if a table represents a linear function?
  2. What happens if the slope is negative?
  3. Can you write a linear equation given any two points?
  4. How do you find the x-intercept of a linear equation?
  5. How does changing the slope affect the graph of a line?

Tip: In a linear equation y=mx+by = mx + b, the coefficient mm represents the rate of change, and bb represents the starting value when x=0x = 0.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Slope-Intercept Form
Rate of Change

Formulas

Slope formula: m = (y2 - y1) / (x2 - x1)
Slope-Intercept Form: y = mx + b

Theorems

Equation of a Line
Slope Calculation

Suitable Grade Level

Grades 7-9