The answer is k=4 you're welcome
Actually, she worked for seven hours, so I'll solve for that.
7.20 x 3 = 21.6
6.75 x 4 = 27
21.6 + 27 = 48.6
48.6 /2 = 24.3
Her average should be $24.3 If she did work six hours, just multiply 6.75 x 3 and do what I did.
![y = -\frac{1}{2}x - 1](https://tex.z-dn.net/?f=y%20%3D%20-%5Cfrac%7B1%7D%7B2%7Dx%20-%201)
Step-by-step explanation:
Let's pick two points on the line:
and
Let's calculate the slope of this line using these points:
![m = \dfrac{y_2 - y_1}{x_2 - x_1} = \dfrac{-2 - 1}{2 - (-4)} = -\dfrac{1}{2}](https://tex.z-dn.net/?f=m%20%3D%20%5Cdfrac%7By_2%20-%20y_1%7D%7Bx_2%20-%20x_1%7D%20%3D%20%5Cdfrac%7B-2%20-%201%7D%7B2%20-%20%28-4%29%7D%20%3D%20-%5Cdfrac%7B1%7D%7B2%7D)
With this value of the slope, we can write the general slope-intercept form of the equation as
![y = -\frac{1}{2}x + b](https://tex.z-dn.net/?f=y%20%3D%20-%5Cfrac%7B1%7D%7B2%7Dx%20%2B%20b)
To solve for the y-intercept b, let's use either P1 or P2. I'm going to use P2:
![-2 = -\frac{1}{2}(2) + b \Rightarrow b = -1](https://tex.z-dn.net/?f=-2%20%3D%20-%5Cfrac%7B1%7D%7B2%7D%282%29%20%2B%20b%20%5CRightarrow%20b%20%3D%20-1)
Therefore, the slope-intercept form of the equation is
![y = -\frac{1}{2}x - 1](https://tex.z-dn.net/?f=y%20%3D%20-%5Cfrac%7B1%7D%7B2%7Dx%20-%201)
Answer:
1;infroei[q
Step-by-step explanation:
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