Y=-7/2x+1/2
i already typed the work out but something went wrong?
1. find slope
2. plug in slope to slope intercept form equation
3. plug in a point to find b
4. plug in slope, b to get equation
Answer:
Interval for t statistic = (-1.345, 1.345)
Step-by-step explanation:
given that a random sample of size 15 is selected from a normal population. The population standard deviation is unknown.
Since population std deviation is unknown and also sample size <30, we have to use t test only for testing of hypothesis
Given it is a two tailed test at 10% significance level.
Degree of freedom = 15-1 =14
t critical value for df 14 two tailed is
1.345
Hence our test statistic should lie between
(-1.345, 1.345)
Then null hypothesis is accepted
Other wise it is rejected.
We can use the formula d = rt in getting the algebraic equation for the two cars where; d = distance, r = rate, t = time.
Given:

(blue car) = 35 miles per hour

(red car) = 70 miles per hour
distance between the two towns = 140 miles

(blue car)= no. of hours the blue car travels

(red car) = no. of hours the red car travels
Linear equation for the blue car




blue car travels 4 hours from town A to town B.
Linear equation for the red car




red car travels 2 hours from town A to town B.
The answer is true i believe.
Answer:
1.y=0.5x
2.y=2x+1
Step-by-step explanation:
slope = y2-y1/x2-x1
y-y1=slope(x-x1)