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Use the line of best fit to predict the percentage sales increase when the
discount is 35%.
100
80
60
(20, 62)
Sales Increase (%)
40 -
20
(10, 32)
10
30
40
50
Discount (%)
A. 93%
OB. 107%
C. 85%
D. 22%

Use the line of best fit to predict the percentage sales increase when the discount is 35 100 80 60 20 62 Sales Increase 40 20 10 32 10 30 40 50 Discount A 93 O class=

Respuesta :

daijiain101

Answer:

107%

Step-by-step explanation:

because if we look at the x-axis, Discount (%)

and look at 35 which is between 30 and 40

and start going up we get near 100

so

107%

or?

we use the two points and with that we find the slope first

[tex]\frac{y2-y1}{x2-x1}[/tex]

plug in (20,62) and (10,32)

[tex]\frac{32-62}{10-20}[/tex]

equals

[tex]\frac{-30}{-10}[/tex]

simplify to 3

then we use

y - y1 = m (x - x1)

y - 62 = 3 (x - 20)

y - 62 = 3x - 60

add 60 from both sides

y - 2  = 3x

add 2 to both sides

y=3x+2

then plug in 35

y= 3(35) + 2

which is

107

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