Math Problem Statement

Write the linear equation that gives the rule for this table.

x y 5 83 6 84 7 85 8 86

Write your answer as an equation with y first, followed by an equals sign.

Solution

To find the linear equation that represents the relationship between xx and yy in the table, we can observe that as xx increases by 1, yy also increases by 1. This suggests that the slope of the line is 1. We can write the equation in the form y=mx+by = mx + b, where mm is the slope and bb is the y-intercept.

Given that the slope m=1m = 1, we can use one of the points to find bb. Let's use the point (5,83)(5, 83):

y=mx+by = mx + b 83=1(5)+b83 = 1(5) + b 83=5+b83 = 5 + b b=835=78b = 83 - 5 = 78

Thus, the equation that represents the relationship between xx and yy is:

y=x+78y = x + 78

Would you like more details or have any questions?

Here are 5 related questions for further practice:

  1. What is the slope of the equation y=2x+3y = 2x + 3?
  2. How do you find the y-intercept of a linear equation?
  3. What is the equation of a line with slope 2 passing through the point (1,4)(1, 4)?
  4. How can you tell if a table of values represents a linear relationship?
  5. If a linear equation has a slope of 0, what does its graph look like?

Tip: The slope of a line represents how much the y-value changes for every 1 unit increase in the x-value.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Slope-Intercept Form

Formulas

y = mx + b

Theorems

Slope-Intercept Form of a Linear Equation

Suitable Grade Level

Grades 6-8