Answer:
(4,5)
Step-by-step explanation:
Step-by-step explanation:
it is totally simple : you need to put the x-value into every place of the x-variable, and then we calculate.
and then the same for the next x-value. and the next. ...
-2
-2×-2 + 9 = 4 + 9 = 13
0
-2×0 + 9 = 0 + 9 = 9
2
-2×2 + 9 = -4 + 9 = 5
4
-2×4 + 9 = -8 + 9 = 1
Answer:
(4,-6)
Step-by-step explanation:
1) First, let's find the slope of the line between the two points. Use the slope formula
, substitute the x and y values of (-2,9) and (2,-1) into it, then solve:
![m = \frac{(-1)-(9)}{(2)-(-2)}\\m = \frac{-1-9}{2+2} \\m =\frac{-10}{4} \\m = -\frac{5}{2}](https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%7B%28-1%29-%289%29%7D%7B%282%29-%28-2%29%7D%5C%5Cm%20%3D%20%5Cfrac%7B-1-9%7D%7B2%2B2%7D%20%5C%5Cm%20%3D%5Cfrac%7B-10%7D%7B4%7D%20%5C%5Cm%20%3D%20-%5Cfrac%7B5%7D%7B2%7D)
So, the slope of the line is
.
2) Now, using that slope, let's find another point on the line. You can do this by drawing the two points on a graph (picture below). Now, remember that the slope is
. So, starting from any of the two points (I chose (2,-1), as seen below) count 5 units down, then 2 units to the right. This gives an answer, (4,-6).
What is your question?????
Answer: 30% of decrease
Step-by-step explanation:
$13.95 - $10 = $3.95
$13.95___100%
$3.95___x= 28.31%
(3.95*100) / 13.95 = 28.31 = 30