A local newspaper said that the city of Luttrell is expected to grow by 10% each year. The population in 2012 is 130,457 people.
1 answer:
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Just to get formulas out the way so that I don't have to write them out every time:
slope-intercept form: y = mx + b
where m is the slope and b is the y-intercept.
slope =
where X1 and Y1 are the x- and y-coordinates in the first ordered pair. Same applies for X2 and Y2.
1) They give you the slope so plug it in along with the point given and solve for b.
y = 2/5x + b
- 6 = 2/5(- 1) + b
- 6 = - 2/5 + b
- 6 + 2/5 = b
- 30/5 + 2/5 = b
- 28/5 = b
Your equation: y = - 2/5x - 28/5
2) Find your slope first then plug in any point to solve for b.
m =
y = 3/7x + b
5 = 3/7(- 2) + b
5 = - 6/7 + b
5 + 6/7 = b
35/7 + 6/7 = b
41/7 = b
y = 3/7x + 41/7
3) Same thing as above.
m =
y = 0x + b
y = b
7 = b
y = 7
4) Same as above
m =
undefined.
Because your slope is undefined, it is no longer a "y =" problem but rather an "x =" equation. You then take the x-values of the two ordered pairs (they should match) and that becomes the right side of the equal sign.
x = 6
slope-intercept form: y = mx + b
where m is the slope and b is the y-intercept.
slope =
where X1 and Y1 are the x- and y-coordinates in the first ordered pair. Same applies for X2 and Y2.
1) They give you the slope so plug it in along with the point given and solve for b.
y = 2/5x + b
- 6 = 2/5(- 1) + b
- 6 = - 2/5 + b
- 6 + 2/5 = b
- 30/5 + 2/5 = b
- 28/5 = b
Your equation: y = - 2/5x - 28/5
2) Find your slope first then plug in any point to solve for b.
m =
y = 3/7x + b
5 = 3/7(- 2) + b
5 = - 6/7 + b
5 + 6/7 = b
35/7 + 6/7 = b
41/7 = b
y = 3/7x + 41/7
3) Same thing as above.
m =
y = 0x + b
y = b
7 = b
y = 7
4) Same as above
m =
Because your slope is undefined, it is no longer a "y =" problem but rather an "x =" equation. You then take the x-values of the two ordered pairs (they should match) and that becomes the right side of the equal sign.
x = 6
<span>A. 8,648,640
B. 13
C. 665,280
D. 4,324,320
</span>Assume you don't watch movies twice.
If you have 13 movies to pick from, then you have 13 choices for the first movie. Then, only 12 choices are left. Do this until only 6 are left (13-7=6)
This equates to
Therefore, the answer is A, 8,648,640 different ways.
Hope this helps!
B. 13
C. 665,280
D. 4,324,320
</span>Assume you don't watch movies twice.
If you have 13 movies to pick from, then you have 13 choices for the first movie. Then, only 12 choices are left. Do this until only 6 are left (13-7=6)
This equates to
Therefore, the answer is A, 8,648,640 different ways.
Hope this helps!