To solve number eight, you would set it up as an equation equal to 180
72+7x+24=180
Next you would combine like terms 24 and 72 to get 96
Now the equation is 96+7x=180 Now, subtract 96 from 180 and then divide by seven to get x, so then x is equal to 12
Part A
Correlation coefficient: -.99
This tells us that as time goes on (value of x increases) the area of the puddle goes down (value of y decreases)
Part B
y₂ - y₁
------- = slope
x₂ - x₁
9 - 15
--------
5 - 8
-6/-3 = 2
So the slope equals -2, regardless of the fact that we got 2 as an answer there, we know that it is a negative slope
Part C
The data represents causation because an increase in the value of x results in a decrease in the value of y, this shows an example of direct causation between x and y.
b.)
40% of the surveyed customers like the taste of the cookie.
So each bottle of water costs $0.85
look at the attached picture
Hope it will help you..
y-intercept of the line shown in the graph is -1.
Option B is correct.
Step-by-step explanation:
We need to find y-intercept of the line shown in the graph.
For finding y-intercept we put x=0
So, from graph we will check for what value of y is x=0
x=0 when y=-1
So, y-intercept of the line shown in the graph is -1.
The point is highlighted in the graph attached.
Option B is correct.
Keywords: Finding y-intercept
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