No because being proportional only relates to multiplication not addition or subtraction.
Answer:
2.5 + 3<em>h</em> = 13
Step-by-step explanation:
2.5 for the hotdog.
3 for each hamburger
3.5$ for each hamburger as h
Hope this Helps!
(x-1) (x+5)
Step-by-step explanation:
Answer:
a)
b)
Step-by-step explanation:
We assume that the data is this one:
x: 150 129 142 112 134 122 126 120
y: 88 96 106 80 98 63 95 64
Part a
We want to find a linear model . Where:
Where:
So we can find the sums like this:
With these we can find the sums:
And the slope would be:
Nowe we can find the means for x and y like this:
And we can find the intercept using this:
So the line would be given by:
Part b
For this case w ejust need to replace x= 113 in the regression model and we got this: