Amovie theater sends out a coupon for 70% off the price off a ticket. a) write an equation for the situation, where y is the price of the ticket with the coupon, and x is the original price of the ticket. use integers or decimals for any numbers in the expression.

Step-by-step explanation:

Givens:

So, knowing what represents the variables, we can write an expression to model this situation. The expression would be:

The difference is modelling the offer, the discount from the coupon, it says that such coupon offers a discount of 70% of the original prices, and that percentage is represented by 0.70, multiplied by because that variable represents the original price. In addition, we have to subtract, because a discount means lower price, less than the original.

Therefore, the expression is:

In words, with the coupon, people just pay 30% of the original price.

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17