Answer:
The x-axis
Step-by-step explanation:
When the y-value is 0, x value can be anything from -∞ to ∞. So, any solution would lie on the x-axis only when y = 0.
Answer:
-7/2
Step-by-step explanation:
Answer: 554
Step-by-step explanation:
If prior population proportion is known, then the formula to find the sample size is given by :-

As per given description, we have
p= 0.1
E=0.025
Critical z-value for 95% confidence : 
Then,

Hence, the minimum sample size required = 554.
Answer:
59.5
Step-by-step explanation:
(7x7) + (7x3)/2