# Algebra

posted by .

2. Find the value of x^3 +2x^2 -3 when x =3

12. What type of correlation would you expect between the number of minutes a candle burns and the height of the candle?
a. no correlation
b. positive correlation
c. negative correlation
d. equal correlation

13. Write a function rule for the table shox
x 2 3 4
F(x) 2 1 0

• Algebra -

2) 27 + 18 -3 = 42 agree

12) I would say positive, burning time = k * height

13)f(x) = 2 - (x-2) = 4-x

• Algebra -

2. 42 is correct!

12. c is correct.

13. X = 2,3,4.
F(x) = Y = 2,1,0.

(x,y)

(2,2)

(3,1)

(4,0).

m = (2-1) / (2-3) = 1/-1 = -1.
m = (1-0) / (3-4) = 1/-1 = -1.
m is the same @ all given points. So
the function is a linear Eq.

(2,2).
Y = mx + b = 2,
-1*2 + b = 2,
-2 + b = 2,
b = 4.

F(x) = -x + 4.

## Similar Questions

1. ### math (rate)

A blue candle is twice as long as a red candle. The blue candle takes 6 hours to burn out, and the red candle takes 15. After 5 hours, what fractional part of each candle is left?
2. ### Algebra 1

Jillian wants to buy candles for winter, in case her electricity and furnace fail. Each candle she plans to use, burns at a rate of 5 mL of was per 15 cm. How many HOURS will it take the candle to burn down completely?
3. ### Algebra 1

ok, no one has helped me with it the first time, let's see if this time is successful. Jilian wants to buy candles in case her electricity and furnace fail. Each candle she plans to use, burns at a rate of 5mL of wax per 15 min. One …
4. ### Calculus

The burning candle A candle is placed a distance l1 from a thin block of wood of height H. The block is a distance l2 from a wall as shown in Figure 7.1. The candle burns down so that the height of the flame, h1 decreases at the rate …
5. ### statistic

what type of correlation would you expect to exist between people's height and their shoe size?
6. ### Math

A candle has length 25 cm. Once lit, the candle burns away at a constant rate of 0.6 cm per minute. What is the length of the candle (in cm) 20 minutes after it is lit?
7. ### Correlations

Which type of correlation would you expect to see between the distance traveled and the time it takes to travel that distance?
8. ### algebra

Which type of correlation would you expect to see between the distance traveled and the time it takes to travel that distance?
9. ### algebra 2

A 16-inch candle is lit and burns at a constant rate. After 30 minutes, the candle is 12 inches tall. Which linear equation models the relationship between h, the height of the candle in inches, and t, the time in hours that it has …
10. ### Statistics

The correlation coefficient between X and Y is the same as the correlation coefficient between Y and X. True - If you were to find the correlation coefficient with a given data set for x and y, it would have the same correlation coefficient …

More Similar Questions