I need help with 3 Use the scatter plot below for 34 Which g

Use the scatter plot below for 3-4. Which gives the line of best fit? A f(x) = 24x B f(x) 24x - 250.C f(x) = 24x - 250 D f(x) = 250x +24 What does the slope mean? F The slope of 24 tells how much an LCD TV increases in price for each 1 in. increase in diagonal length. G The slope of 24 tells how much the diagonal length increases in inches for each $1 price increase. H The slope of 250 tells how much the diagonal length increases in inches for each $1 price increase. J The slope of 250 tells how much an LCD TV increases in price for each 1 in. increase in diagonal length.

Solution

(3) We can say the equation is, f(x) = 24x - 250.

Because it satisfies the given data like it is shown below.

At x=20, f(x) = 24(20)-250 = 230 (In graph also, (20,230) is a point on the line)

At x=25, f(x) = 24(25) - 250 = 350 (In graph also, (25,350) is a point on the line)

At x=30, f(x) = 24(30) - 250 = 470 (In graph also, (30, 470) is a point on the line)

At x=35, f(x) = 24(35)- 250 = 590 (In graph also, (35, 590) is a point on the line)

At x=40, f(x) = 24(40) - 250 = 710 (In graph also, (40, 710) is a point on the line)

At x=45, f(x) = 24(45) -250 = 830 (In graph also, (45, 830) is a point on the line)

At x= 50, f(x) = 24 (50) - 250 = 950 (In graph also, (50, 950) is a point on the line)