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Answer:
Have to do a^2 plus b^2 =c^2
Step-by-step explanation:
Find the x intercepts by setting each x to equal 0:
(4-x)=0
4 -4 = 0
First x intercept = (4,0)
(x+2) = 0
-2 + 2 = 0
Second x intercept = (-2,0)
Now find the Y intercept by setting the x's to 0 and solve for y:
y = (4-0)(0+2)
y = 4*2
y = 8
The Y intercept is (0,8)
Now find the graph the the parabola crosses the x axis at -2 and 4 and also crosses the Y axis at 8.
Graph A is the correct one.
Hello!
To find the side length you use the equation
![a = \sqrt{2} \frac{d}{2}](https://tex.z-dn.net/?f=a%20%3D%20%20%5Csqrt%7B2%7D%20%20%5Cfrac%7Bd%7D%7B2%7D%20)
a is side length
d is diagonal
Put in the number we know
![a = \sqrt{2} * \frac{27}{2}](https://tex.z-dn.net/?f=a%20%3D%20%20%5Csqrt%7B2%7D%20%2A%20%20%5Cfrac%7B27%7D%7B2%7D%20)
Divide
![a = \sqrt{2} * 13.5](https://tex.z-dn.net/?f=a%20%3D%20%20%5Csqrt%7B2%7D%20%2A%2013.5)
Multiply
a = 19.091
The answer is 19.09
Hope this helps!