Y = -4x+2
x = -1
-4(-1) + 2 = /// 6 = y
x = 0
-4(-1) + 2 = /// 2 = y
x=1
-4(1) + 2 = /// -2 = y
x=2
-4(2) + 2 /// -6 = y
Answer:
Average speed = 9.91 m/s
Explanation :
Total distance covered by a runner = 200 m
Time taken to complete this distance = 20.19 sec
We need to find the average of runner speed in meter/sec
We use the speed, distance, time formula

speed = 
Average speed = 9.91 m/s
that's the final answer.
I hope it will help you.
Answer:
I THINK a=3 b=9
Step-by-step explanation:
Multiply 25 and 38, the divide that by 34.
the negatives will cancel because there is 1 on the top and 1 on the bottom.
i got 27.9412