When you graph a system of linear equations, why does the intersection of the two lines represent the solution of the system?

Every point on a line satisfies the related linear equation. A point that is on both lines (the intersection point) satisfies both equations.

Every point on a line does not satisfies the related linear equation

Every point on a line called slope of line.

Every point on a line called skew point.

Aschool typically sells 500 yearbooks each year for 50 dollars each. the economic calls does a project and discovers that they can sell 100 more yearbooks for every $5 decrease in price. the revenue for yearbook sales is equal to the number of yearbooks sold times the price of the yearbook. let x represent the number of $5 decrease in price. if the expression that represents the revenue is written in the form r(x)=(500+ax)(50-bx). to maximize profit, what price should the school charge for the yearbooks? what is the possible maximum revenue? if the school attains the maximum revenue, how many yearbooks will they sell?

Can u guys do this ratio question. this is extremely urgent a tap is leaking water at a rage of 1l every 8 hours. how long will it take for the tap to leak a total of 300ml?

What are the steps to solving the inequality 3b + 8 ≥ 14?