Answer:
Step-by-step explanation:
Piecewise function 'f' has been given as,
f(x) = 4x + 3 when x < 0
(x + 7) when x ≥ 0
By using the piecewise function,
a). f(-2) = 4(-2) + 3 (Use f(x) = 4x + 3, since x = -2 is less than 0)
= -8 + 3
= -5
b). f(0) = 0 + 7 (Use f(x) = x + 7, since x = 0 is equal to 0)
= 7
c). f(1) = 1 + 7 (Use f(x) = x + 7, since x = 1 is greater than 1)
= 8
We are given the following two points
(-4, 0) and (-5, -3)
The slope is given by
![m=\frac{y_2-y_1}{x_2-x_1}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7By_2-y_1%7D%7Bx_2-x_1%7D)
![\text{where }(x_1,y_1)=(-4,0)\; \text{and }(x_2,y_2)=(-5,-3)](https://tex.z-dn.net/?f=%5Ctext%7Bwhere%20%7D%28x_1%2Cy_1%29%3D%28-4%2C0%29%5C%3B%20%5Ctext%7Band%20%20%7D%28x_2%2Cy_2%29%3D%28-5%2C-3%29)
Let us substitute the given values into the slope formula
![m=\frac{y_2-y_1}{x_2-x_1}=\frac{-3-0}{-5-(-4)}=\frac{-3}{-5+4}=\frac{-3}{-1}=3](https://tex.z-dn.net/?f=m%3D%5Cfrac%7By_2-y_1%7D%7Bx_2-x_1%7D%3D%5Cfrac%7B-3-0%7D%7B-5-%28-4%29%7D%3D%5Cfrac%7B-3%7D%7B-5%2B4%7D%3D%5Cfrac%7B-3%7D%7B-1%7D%3D3)
Therefore, the slope of the line is 3
Answer:
Step-by-step explanation:
double distribute
2x^2+3x-10x-15
2x^2-7x-15
B. the number of accidents was produced by 0.67 per every month
would most like be your answer.
☺
Answer:
1 3/7
Step-by-step explanation:
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