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The scatter plot shows the systolic blood pressure of people of several different ages. The equation represents the linear model for this data.



y = x + 95



According to the model, how much does the systolic blood pressure increase for each year of age?


1 mm Hg per year

5 mm Hg per year

15 mm Hg per year

95 mm Hg per year

110 mm Hg per year


A graph measuring systolic blood pressure in relation to age. A line indicates that blood pressure increases as age increases

The Scatter Plot Shows The Systolic Blood Pressure Of People Of Several Different Ages The Equation Represents The Linear Model For This Data Y X 95 According T class=

Sagot :

Looking at the equation y= x + 95
We can see it is in the format y = mx + b,
where m represents the slope, or the rate of increase.

Since x is alone, it is assumed to be “1x”, with 1 being m, the slope.

Therefore the systolic blood pressure increases by 1 mm Hg per year.

Another way to solve this if you didn’t have the equation:

If we find two easy to pinpoint plots such as:
(0,95) (15,110)

The equation for slope is

x - x / y - y

15-0 / 110-95

= 15/15
= 1
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