Solving systems by graphing I need help on how to graph this
1 answer:
Answer:
(4.449, 0.449) and (-0.449, -4.449)
Step-by-step explanation:
xy = 2
y =
Vertical asymptote → x = 0
Horizontal asymptote → y = 0
Input-output values for the equation,
x -2 -1 1 2 4
y -1 -2 2 1 0.5
Input-output values of the equation,
x - y = 4
x -2 -1 0 1 2
y -6 -5 -4 -3 -2
Solutions of the system of equations → (4.449, 0.449) and (-0.449, -4.449)
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Answer:
There is evidence to show that the single-earner couples on average spend more time watching television together
Step-by-step explanation:
Given that a recent study compared the time spent together by single- and dual-earner couples. According to the records kept by the wives during the study, the mean amount of time spent together watching television among the single-earner couples was 61 minutes per day, with a standard deviation of 15.5 minutes. For the dual-earner couples, the mean number of minutes spent watching television was 48.4 minutes, with a standard deviation of 18.1 minutes.
(Right tailed test where x stands for single earner and y for double)
Let us assume sample sizes are 500 each.
Difference -12.600
Standard error 1.066
95% CI -14.6913 to -10.5087
t-statistic -11.823
DF 998
Significance level P < 0.0001
Since p is less than alpha we reject null hypothesis.
There is evidence to show that the single-earner couples on average spend more time watching television together