Ok, make sure you put the powers correctly. I know what you mean but someone else may not. So it's step 2. This is because the 4 doesn't mean add a digit.
Answer: x = 1
Step-by-step explanation:
substitute 1 for x
1/2(10(1)+6) = -2(1)+10
1/2(10+6) = -2+10
5+3 = -2+10
8=8
Answer:
-2.5x-.5
![y=\frac{2}{3}x-1](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B2%7D%7B3%7Dx-1)
draw the dotted line (3/7)x-3 and shade below it
Step-by-step explanation:
First, we need the slope
Use the slope formula:
![\frac{Y_2-Y_1}{X_2-x_1}=\frac{2-(-8)}{-1-3}=\frac{10}{-4}=-2.5](https://tex.z-dn.net/?f=%5Cfrac%7BY_2-Y_1%7D%7BX_2-x_1%7D%3D%5Cfrac%7B2-%28-8%29%7D%7B-1-3%7D%3D%5Cfrac%7B10%7D%7B-4%7D%3D-2.5)
so we have
y= -2.5x+b
Solve for b by plugging in coordiantes
-8= -2.5(3)+b
-8= -7.5+b
b= -.5
Put it together and get -2.5x-.5
2.)
A line is parallel to another line if they have the same slope (and different y intercepts)
So in the formula y=mx+b we knowe that m= 2/3
Now it's just a matter of solving for B
plug in the required coordinate to do this
-1=(2/3)*0+b
-1= b
Put it all together to get
![y=\frac{2}{3}x-1](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B2%7D%7B3%7Dx-1)
3.)
put this into slope intercept form
3x-7y>21
3x-21 > 7y
(3/7)x-3 >y
To graph this just draw a dotted line with the equation (3/7)x-3 and shade everything below it (use de_smos if you're stuck)
Answer:
46
Step-by-step explanation:
6 times 2 is 12
23 times 2 is 46