Answer:
x=y
Step-by-step explanation:
let x be the number of tennis balls and y the number of rackets.
-We divide the number of balls by the number of rackets to find out their ratio of proportionality:

-Hence, for each one ball there is one racket, so;

-This relationship is linear in nature, a direct variation, and can be graphed as attached below:
9x² + 7y² = 42
7y² = 42 - <span>9x²
</span>
y² = (42 - <span>9x²)/7</span>
The equation is y = -1/3x + 2.
Point Slope Form : y - y1 = m(x - x1)
Given: (0,2) and y = 3x + 2
When the line is perpendicular, flip the slope upside down and make it into its opposite ( - to +).
Slope: -1/3
y - 2 = -1/3(x - 0)
y - 2 = -1/3x + 0
+ 2 + 2
---------------------------
y = -1/3x + 2
base time height id your area your base is 9 so is ur height.
your awnser is =81 inches squared