Answer:
y = 10x
Step-by-step explanation:
(2, 20)
(5, 50)
(7, 70)
From 2 to 5 we add 3 (x section)
From 20 to 50 we add 30 (y section)
We can do y/x = 30/3 = 10
The slope will be 10.
Hope this helped!
Have a supercalifragilisitcexpialidocious day!
<span>Answer: - (1/2)x + 2
Solution:
1) Table
</span>
<span><span>
</span><span><span>
x
y
</span>
<span>
-2
3
</span>
<span>
0
2
</span>
<span>
4
0
</span>
<span>
6
-1
The first thing that you must probe is whether the relation is linear.
When the relation is linear the rate of change is constant.
The rate of change is Δy / Δx
2) Let's calculate that rate for all the points given:
</span></span></span><span><span>
x
y
</span>
-2
3
<span>
0
2
</span>
<span>
---> Δx = 0 -(-2) = 2, Δy = 2 - 3 = - 1 => Δy / Δx = - 1/2
4
0
---> Δx = 4 - 0 =4, Δy = 0 - 2 = -2 => Δy / Δx = -2/4 = - 1/2
</span>
<span>
6
-1</span></span> ---> Δx = 6 - 4 = 2, Δy = - 1 - 0 = -1 => Δy / Δx = - 1/2
<span> </span>
So, we have shown that the relation is linear.
3) Now, you can use the equation of the line: y = mx + b, where m is the slope (rate of change Δy / Δx) and b is the y-intercept.
We already found m = -1/2
The y-intercept is the value of y when x = 0, which you can get from the table; b = 2.
Therefore the equation is: y = (-1/2)x + 2.
The third equation is true
3.95m+8.95b=47.65
good luck
Answer: 720
Step-by-step explanation: So this question really is just about subtraction and addition so as you can tell 630 is lower than 693 so if you add to where it is a 693 you need to add 63. But if you look at 720 its higher so you need to subtract and if you subtract to 693 then you need to subtract 27. So 27 is less than 63.
X is equal to 11/30 because, using basic moves, you subtract the 2 4/5 from either side to get x by itself. So 3 1/6 - 2 4/5 = 11/30. Then you are left with x = 11/30.