Join the growing community of curious minds on IDNLearn.com and get the answers you need. Get prompt and accurate answers to your questions from our experts who are always ready to help.
Answer:
D: y = 3x
Step-by-step explanation:
The relationship shown is a proportion. The only "unknown" is the constant of proportionality, the slope of the line. That is most easily found by looking for the value of y that corresponds to the value x=1.
__
This graph shows that 1 song costs $3, so the equation is ...
y = 3x