Easy, using 
to find the intercept:
=
=3
This is your slope. m=3
To find y=mx+b form
-4=3(-1)+b
-4=-3+b
-1=b
y=3x-1 in y=mx+b form
This is your slope. m=3
To find y=mx+b form
-4=3(-1)+b
-4=-3+b
-1=b
y=3x-1 in y=mx+b form
Is 78 degrees the correct answer?
2 answers:
You might be interested in
Answer:
The 99% confidence interval has the higher value of z, so it has the largest margin of error
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
The margin of error is:
So the higher the value of Z, the higher the margin of error.
90% confidence level
So , z is the value of Z that has a pvalue of
, so
.
95% confidence level
So , z is the value of Z that has a pvalue of
, so
.
99% confidence level
So , z is the value of Z that has a pvalue of
, so
.
The 99% confidence interval has the higher value of z, so it has the largest margin of error