The table shows a linear relationship between x and y. х
у
-20
96
-12
60
-6
33
-2
15
What is the rate of change of y with respect to x?

Step-by-step explanation:

Rate of change of x and y can be calculated using the following formula and using any two given pair of values from the table:

Rate of change =

Using (-12, 60) and (-6, 33).

Where,

Plug is the values

Rate of change =

Rate of change =

Simplify

Rate of change =

Rate of change =

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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