Answer:
Line A
Step-by-step explanation:
Line A is the line of best fit because it intersects the point (10,3) on the graph while the others do not.
1 - 1/5 = 5/5 - 1/5 = 4/5
4/5 - 1/5 = 3/5
3/5 - 1/5 = 2/5
2/5 - 1/5 = 1/5
1/5 - 1/5 = 0
We can subtract 1/5 from 1 a total of 5 times, so 1 ÷ 1/5 = 5.
Answer:
x = ±10
Step-by-step explanation:
4x² - 400 = 0
Add 400 to both sides
4x² = 400
Divide both sides by 4
x² = 100
Take the square root of both sides
x = ±10
