Identify the domain of the function shown in the graph.

What are “like terms”? why can we only add like terms?

Which of the following is true for the relation f(x)=2x^2+1

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).