Are these good for a 684 USD gaming computer

Give all possible names for the line shown.calculation tip: lines can be written with either point first.

What term makes it inconsistent y=2x - 4

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax