The width is between 2 feet and 4 feet
Taking the average, 1/2 (2 + 4) = 4 feet
The length is between 3 feet and 6 feet
Taking the average, 1/2 (3 + 6) = 4.5 feet
Area of one panel = 4 x 4.5 = 18 ft²
Area of 5 panels = 18 x 5
Area of 5 panels = 90 ft²
The estimated area of the 5 panels is 90 ft².
John's estimate is not reasonable as 140ft² is way too high from the average of 90 ft².
<em>Even taking the biggest possible length and width</em>
<em>The area of 1 panel = 4 x 6 = 24 ft²</em>
<em>The area of 5 panels = 24 x 5 = 120 ft²</em>
<em>Even taking the highest possible estimate of 120 ft², John's estimate is still way too high</em>
Answer:
y = 2x + 7
Step-by-step explanation:
Slope Formula: 
Slope-Intercept Form: y = mx + b
We are only focusing on the line of best fit.
Step 1: Find 2 coordinates
(0, 7) y-intercept
(2, 11) random
Step 2: Find slope <em>m</em>
m = (11 - 7)/(2 - 0)
m = 4/2
m = 2
y = 2x + b
Step 3: Rewrite linear equation
y = 2x + 7
The pencil work in your workbook is correct,
EXCEPT for the very last number ...
The last number is (4 x 3). That's '12', not '7'.
Step-by-step explanation:
y = -3x² + 12x - 33
y = -3[x² - 4x + 11]
y = -3[(x - 2)² + 7]
Since the coefficient of x² is negative, the curve concaves downwards and has an absolute maximum value. This happens when x = 2, y = -21.
Therefore the correct option is A.
