a company plans to sell purses for $20 each. the companys business manager estimates that the cost, y, of…

a company plans to sell purses for $20 each. the companys business manager estimates that the cost, y, of making x purses is a quadratic function with a y - intercept of 1,989 and a vertex of (500,4,489). x = number of purses y = amount in dollars which linear equation models the companys income from selling x purses? y = x + 20 y = 20x y = \\frac{x}{20} y = \\frac{20}{x} done

a company plans to sell purses for $20 each. the companys business manager estimates that the cost, y, of making x purses is a quadratic function with a y - intercept of 1,989 and a vertex of (500,4,489). x = number of purses y = amount in dollars which linear equation models the companys income from selling x purses? y = x + 20 y = 20x y = \\frac{x}{20} y = \\frac{20}{x} done

Answer

Explanation:

Step1: 売上金額の計算方法を考える

1つのバッグが20ドルで、x個を売るとき、売上金額yは単価×数量で求められる。

Step2: 式を立てる

単価が20ドル、数量がx個なので、y = 20xとなる。

Answer:

y = 20x