Given the function:
p(r) = 3 - r
Let's graph the function using 6 points.
Input the different values for r and solve for p(r).
• When r = -2:
p(-2) = 3 - (-2)
p(-2) = 3 + 2
p(-2) = 5
Ordered pair: (r, p) ==> (-2, 5)
• When r = -1:
p(-1) = 3 - (-1)
p(-1) = 3 + 1
p(-1) = 4
Orderd pair: (-1, 4)
• When r = 0:
p(0) = 3 - 0
p(0) = 3
Ordered pair: (0, 3)
• When r = 1:
p(1) = 3 - 1
p(1) = 2
Ordered pair: (1, 2)
• When r = 2:
p(2) = 3 - 2
p(2) = 1
Ordered pair: (2, 1)
To graph the function, plot the given ordered pairs on the graph and connect using a straight edge.
Therefore, we have table:
r p(r) Ordered pair
-2 5 (-2, 5)
-1 4 (-1, 4)
0 3 (0, 3)
1 2 (1, 2)
2 1 (2, 1)
The graph is attached below: