Linear Function: Fitting Equations to Tables with Values (-1,10), (0,8), (1,6)

Question

Given the two tables of values x and and.

These tables represent a linear function. Fit an equation of a linear function to each one.

10-1x6810y24

Video Solution

Step-by-Step Solution

To solve for the linear function, we need to follow these structured steps:

Step 1: Calculate the slope (m m ).

Use the points (1,10)(-1, 10) and (0,8) (0, 8) . The slope m=8100(1)=21=2 m = \frac{8 - 10}{0 - (-1)} = \frac{-2}{1} = -2 .

Step 2: Determine the y-intercept (b b ).

Use the point-slope form with the point (0,8) (0, 8) (since x=0 x = 0 is the y-intercept directly). Thus, b=8 b = 8 .

Step 3: Write the equation of the line.

The equation fitting the table values is y=2x+8 y = -2x + 8 .

Therefore, the equation of the linear function is y=2x+8 y = -2x + 8 .

Answer

y=2x+8 y=-2x+8