HOC24
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Ta có:y=f(x)=a*x+b
y=f(0)=a*0+b
=0+b=b
=>f(0)=b mà f(0)= -2 nên b=-2
Ta lại có:y=f(x)=a*x+b
y=f(3)=a*3+(-2)
=>a*1=a
=>f(3)=a mà f(3)=1 nên a =1
Vậy hệ số cần tìm là a=1, b=-2 và y=f(x)=1*x+(-2)
so sánh điểm khác trận bạch đằng 1288 của nhà trần với trận Bạch đằng 981 và 938? mình đạng cần gấp thanhs
1. There is a cat in the room./There is a mouse in the room.
2 There are some trees in the garden.
3 There is a train at 11.30.
There are 5 lessons everyday at school.
I study science once a week.
I often do judo at the weekend.
I do my homework in the evening.
I never play football .
1.There are some birds near the gorilla.
2 There is a piece of rock near the tree.
3 There are some shark in the aquarium.
4.There is a dolphin in the aquarium ,too.
yours
1.How does Nam go to the post office? -He goes to the post office by bike.
2. How do Nga and Lan go to school ? - They go to school by school bus.
3. How does your father travel to Ha Noi?-He tralvels to Ha Noi by plane.
4. How do the children go to the zoo?- They go to the zoo by bus.
5.How do you and your friends go to the stadium ?- We go to the stadium on foot.
6.How does Mrs Lien go to the market ?-She goes to the market by motorbike.
raining nha
July
I do my math homework.