Question

finding slope guided notes & practice
slope can also be found from the coordinates of two points on the line using a formula.
however, you must first know how to name the coordinates in the points.
$(x_1, y_1), (x_2, y_2)$
for example:
$(5, -2), (-3, 6)$
$x_1 y_1$ $x_2 y_2$
$(0, 2), (7, -1)$
$x_1 y_1$ $x_2 y_2$
$(-4, 1), (8, 0)$
$x_1 y_1$ $x_2 y_2$
practice #2:
name all of the coordinates below:

1. $(19, -16), (-7, -15)$
2. $(1, -19), (-2, -7)$
3. $(-4, 7), (-6, -4)$
4. $(20, 8), (9, 16)$
5. $(17, -13), (17, 8)$
6. $(19, 3), (20, 3)$

Explanation:

Step1: Assign first point as $(x_1,y_1)$

For each pair, label the first given point: $(x_1,y_1)$

Step2: Assign second point as $(x_2,y_2)$

For each pair, label the second given point: $(x_2,y_2)$

Answer:

1. $(x_1,y_1)=(19,-16)$, $(x_2,y_2)=(-7,-15)$
2. $(x_1,y_1)=(1,-19)$, $(x_2,y_2)=(-2,-7)$
3. $(x_1,y_1)=(-4,7)$, $(x_2,y_2)=(-6,-4)$
4. $(x_1,y_1)=(20,8)$, $(x_2,y_2)=(9,16)$
5. $(x_1,y_1)=(17,-13)$, $(x_2,y_2)=(17,8)$
6. $(x_1,y_1)=(19,3)$, $(x_2,y_2)=(20,3)$