The equation of the linear regression line represents the relationship between the number of cars washed for charity, x, and the amount earned for the charity, y. what does the slope of the line represent? y = 10x +20
for every car washed for charity, the amount earned for the charity increases by $2.
for every car washed for charity, the amount earned for the charity increases by $10.
for every car washed for charity, the amount earned for the charity increases by $1.
for every car washed for charity, the amount earned for the charity increases by $20.

Answer with explanation:

If the Equation of Regression line is,

y= a + bx

a = Y intercept

b = Slope of line, it can be positive, negative or zero.

1. If b is positive, for every increase in x by 1, y value increases by b unit.

2. If b is negative, that is if x increases by 1 unit, y value decreases by -b unit.

3. If b=0, that is for increase in x by 1 unit, y neither increases nor decreases.

→→Here, the given regression line is

  y = 10 x + 20,

where linear regression line represents the relationship between the number of cars washed for charity, x, and the amount earned for the charity, y.

Slope =10

Y -Intercept = 20

For, every increase in x by 1 unit , y value increases by 10 unit.

Option B: For every car washed for charity, the amount earned for the charity increases by $10.

the science club has 42 people and the robotics club has 33

step-by-step explanation:

12m

step-by-step explanation:

square root means have of a number so have of 3 is 1.5 then multiply it by 8 and you get your answer!