Question

weekly beach chair sales
the equation for the line of best fit is ( y = 1.25x - 50 ). based on the equation, which of these statements is true?
the store could expect to sell about 176 beach chairs in a week with a high temperature of ( 101^{circ}f ).
the store could expect to sell about 81 beach chairs in a week with a high temperature of ( 105^{circ}f ).

Explanation:

Step1: Substitute \(x = 101\) into \(y = 1.25x-50\)

$$y=1.25\times101 - 50=126.25-50 = 76.25$$

Step2: Substitute \(x = 105\) into \(y = 1.25x - 50\)

$$y=1.25\times105-50=131.25 - 50=81.25\approx81$$

Answer:

The store could expect to sell about 81 beach chairs in a week with a high temperature of \(105^{\circ}F\).