Answer:
x=-7
Step-by-step explanation:
Answer:
The results are given by:___________.
the equation, y = ax+b.
where a = the slope of the line and b is the intercept or the value of Y when X = 0.
Step-by-step explanation:
The simple linear regression is a model for estimating the relationship that exists between an independent variable and a dependent variable. The model uses a straight line for two quantitative variables. With a scatter graph, the line of best fit is given as the equation, y = bX + a. This equation determines the values of b and a for a dataset of two variables. It can also be used to estimate the value of Y for a given value of X.
Answer: k - 8
Step-by-step explanation:
1. If a and b vary inversely and b = 8 when a = 6:
b = k/ a
8 = k / 6
k = 6 * 8
k = 48
Function is:
b = 48 / a
2. When a = 30:
b = 48 / 30 = 8/5
b = 1.6
Answer:
Beatrice's age is 34
Step-by-step explanation:
Beatruce = B
Andrew = B+2
Chris= B-3
B+(B+2) +(B-3 )= 67-B
3B-1 = 67-B
2B -1 = 67
2B= 68
B = 34
Beatrice is 34
Andrew is 36 (34+2)
Chris is 31 (34-3)
36+31 = 67