Which is the slope of the line that passes through the points (2,10) and (5,8)? a. slope = 2/3 b. slope = 7/5 c. slope = 2/5 d. slope = -2/3

Slope = (Y2 - Y1) / (X2 -X1)

Slope = (8 -10) / (5 -2)

Slope = -2 / 3

Answer is D

D. slope = -2/3

Step-by-step explanation:

A first order function is given by the following formula:

In which a is the slope.

In this problem, we have that:

The line passes through the point (2,10). This means that when . So

The line also passes through the point (5,8). This means that when . So

So we solve a system with these two equations.

I am going to write b as a function of a in the second equation, and replace on the first. So

The correct answer is:

D. slope = -2/3

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )