Speed (km/h) 4
6
8
Pulse (bpm)
77
87
97
The table lists selected values of Sam's walking speed, in kilometers per hour (km/h), and his corresponding
pulse, in beats per minute (bpm). There is a linear relationship between Sam's speed, x, and his pulse, f(x).
Which of the following equations describes f(x)?
A f(x)=x+57
B f(x)=-x+97
Cf(x)=5x+57
c
D f(x) = -5x+97
Save. Pick Differ