Phillip bought 12 used CDs and DVDs. CDs cost $2 each, and DVDs cost $3 each. He spent $31, not including tax. How many DVDs did
2 answers:
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Domain :
Range:
Explanation:
It is given that Bev earns $2 a week.
Thus, for n number of weeks, we shall multiply $2 with n.
Where is the number of weeks.
For 1 week, Bev earns ⇒ $2
For 2 weeks, Bev earns ⇒ $4
For 3 weeks, Bev earns ⇒ $6
For 4 weeks, Bev earns ⇒ $8
Thus, we can see that the domain is the number of weeks.
Hence, Domain :
Also, the money earned is the range.
Hence, Range: