153k views
3 votes
Here's a graph of a linear function. Write the

equation that describes that function.
Express it in slope-intercept form.
Enter the correct answer.​

Here's a graph of a linear function. Write the equation that describes that function-example-1

1 Answer

6 votes

First make a table of values of the function’s coordinates, and try to avoid coordinates that include decimals.

Second, find the first differences from the table you constructed. ( it should be 1)

There should be a 2 point gap in the x column if you chose the points (2,-4)(4,-3)(6,-2) (8,-2) and that is your denominator

Last, the y intercept (-5) is your b variable (y=mx +b)

The equation is

Y= x/2 -5

Sorry about my English

User GillyD
by
8.3k points