Answer: A
Step-by-step explanation:
A) around 13 ish. It's hard to frel the exact point. B) 26.08 C) .77 I hope that this helps
+3°C
an increase in temperature is denoted by +
- 7 + 10 = +3C
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
4*(2*x-6)-(10*x-6)=0
2x - 6 = 2 • (x - 3)
8 • (x - 3) - (10x - 6) = 0 -2x - 18 = -2 • (x + 9)
-2 • (x + 9) = 0 Solve : -2 = 0
<span>This equation has no solution.
</span>A a non-zero constant never equals zero.
Solving a Single Variable Equation :
Solve :
x+9 = 0 <span>
</span>Subtract 9 from both sides of the equation :<span>
</span> x = -9
Answer:
Missing co-ordinate for the ordered pair is ![(7,2834)](https://tex.z-dn.net/?f=%287%2C2834%29)
Y-intercept is ![(0,4682)](https://tex.z-dn.net/?f=%280%2C4682%29)
X-intercept is ![(17.73,0)](https://tex.z-dn.net/?f=%2817.73%2C0%29)
Step-by-step explanation:
The number of a certain company's video stores can be approximated by the linear equation
![y= -264\ x+4682](https://tex.z-dn.net/?f=y%3D%20-264%5C%20x%2B4682)
where
is the number of stores and
represents the number of years after 1990.
To find the missing co-ordinate for the ordered pair solution ![(7,?)](https://tex.z-dn.net/?f=%287%2C%3F%29)
For the ordered pair, we are given the
value which is =7 i.e 7 years after 1990. Thus we will plugin
in the linear equation to get the
value which is number of stores after 7 years from 1990.
![y= -264\ (7)+4682](https://tex.z-dn.net/?f=y%3D%20-264%5C%20%287%29%2B4682)
![y= -1848+4682](https://tex.z-dn.net/?f=y%3D%20-1848%2B4682)
![y= 2834](https://tex.z-dn.net/?f=y%3D%202834)
Thus the ordered pair is ![(7,2834)](https://tex.z-dn.net/?f=%287%2C2834%29)
To find y-intercept which is the point where the line touches the y-axis, we would plugin
in the equation as the x-coordinate is 0 at y-axis.
![y= -264\ (0)+4682](https://tex.z-dn.net/?f=y%3D%20-264%5C%20%280%29%2B4682)
![y= 0+4682](https://tex.z-dn.net/?f=y%3D%200%2B4682)
![y=4682](https://tex.z-dn.net/?f=y%3D4682)
Thus y-intercept is at point ![(0,4682)](https://tex.z-dn.net/?f=%280%2C4682%29)
To find x-intercept which is the point where the line touches the x-axis, we would plugin
in the equation as the y-coordinate is 0 at x-axis and thus for ![x](https://tex.z-dn.net/?f=x)
![0= -264\ x+4682](https://tex.z-dn.net/?f=0%3D%20-264%5C%20x%2B4682)
Subtracting both sides by 4682.
![0-4682= -264\ x+4682-4682](https://tex.z-dn.net/?f=0-4682%3D%20-264%5C%20x%2B4682-4682)
![-4682= -264\ x](https://tex.z-dn.net/?f=-4682%3D%20-264%5C%20x)
Dividing both sides by -264
![\frac{-4682}{-264}= \frac{-264\ x}{-264}](https://tex.z-dn.net/?f=%5Cfrac%7B-4682%7D%7B-264%7D%3D%20%5Cfrac%7B-264%5C%20x%7D%7B-264%7D)
![17.73= x](https://tex.z-dn.net/?f=17.73%3D%20x)
∴ ![x=17.73](https://tex.z-dn.net/?f=x%3D17.73)
Thus x-intercept is at point ![(17.73,0)](https://tex.z-dn.net/?f=%2817.73%2C0%29)