1. vertex is -4 because:
x^2-8x-20,
a=1, b=-8 , c=-20
use vertex form! -b/2a = -8/2(1) = -8/2 = -4.
2. axis of symmatry is the x which is also -4. The same steps go for the second one.
3. y intercept, I think the answer is -20. Im not sure for this one.
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Answer:
I am pretty sure its y={5}/{4}x-5
Step-by-step explanation:
Answer:
I think its 14.1 I hope you get it right! :)
Step-by-step explanation:
I would say the best option is A.HL
Answer:
40
Step-by-step explanation:
30/12=2.5
20/2.5=8
8+8+12+12=40
