debry
15.10.2019 •
Mathematics
Which phrase best describes the translation from the graph y = (x - 5)2 + 7 to the graph of y = (x + 1)2 - 2?
6 units left and 9 units down
o 6 units right and 9 units down
o 6 units left and 9 units up
6 units right and 9 units up
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Ответ:
it means. F(K) =25,64 for some value of k
for 25
25=k²+2k+1
k²+2k-24=0
k²+6k-4k-24=0
K(k+6)-4(k+6)=0
(k-4)(k+6)=0
k=-6,+4
for 64
k²+2k-63=0
k²+9k-7k-63=0
k(k+9)-7(k+9)=0
(k-7)(k+9)=0
k=-9,+7
so the domain of F(k)={ -9 , -6 , 4 , 7 }