Devin is investigating the relationship between the temperature in degrees Fahrenheit and the number of gallons of lemonade sold at a lemonade stand at a lemonade stand on each day during a particular week. Her data is shown in the table

Using a regression calculator, what is a good line of best fit for the data

i can you with this question sweetie!

step-by-step explanation:

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72

step-by-step explanation:

the answer is 89 d

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