Create a linear model to predict happiness based on Age and Income and an$$Age x Income$$interaction variable.$$

Use the model to predict the happiness of a person who is $35$ year old with an income of $$50,000.$

NOTE: When a function's argument value is a number greater than $1000$ do NOT use commas$$

For example:

Yes $-->$data$.$frame$($Age$=35,$ Income$=50000)$

No $-->$data$.$frame$($Age$=35,$ Income$=50,000)$