Distribution of blood pressure can be approximated as a normal distribution with mean 85 mm. and standard deviation 20 mm. A blood pressure of 125 or higher is considered high blood pressure. Approximate the percentage of people who have high blood pressure.

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step-by-step explanation:

4th option is correct xy=-10

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options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

eve and marks ratios are equivalent

step-by-step explanation: