The lengths of a certain species of fish are approximately normally distributed with a given mean ll and standard deviation
According to the Empirical Rule, what percentage of the fish will have lengths within 1 standard deviation of the mean?

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.

it would open into a square depending on the type of envelope i’m not sure about the second part

8+10

step-by-step explanation:

you multiply 4 by 2 and 5 by 2