Write the equation of the linear function that passes through the two points ( ) − − 2, 3.1 and ( ) 4, −4.6 . Show all work.
4) Find the slope by labeling the coordinates of the ordered pairs and then substituting the
values into the slope formula.
a. ( ) , , and ( )
b. m =
5) Substitute this calculated slope and the coordinates of the point (−2, −3.1) into
y m = +x b to calculate the b-value.
6) Write the equation of the line.
7) Check the equation by substituting the coordinates of the other ordered pair.
Write the equation of the line passing through the values
shown in the table. Show all work.
8) Find the slope by labeling the coordinates of the ordered
pair from row 2 and row 1 of the table and then substituting
the values into the slope formula.
a. ( )( ) , , and
b. m =
9) Substitute this calculated slope and the coordinates of row 1 into y = mx +b to find the
value of b.
10) Write the equation of the line.
11) Check the equation by substituting the coordinates of row 3.
x y
6 5 3
4
−4 4 1
2
−7 4 1
8