The required equation of line is:
![y=-x+1](https://tex.z-dn.net/?f=y%3D-x%2B1)
Step-by-step explanation:
Given
m=-1
And point (2,-1)
The general form of slope intercept form of equation of line is:
![y=mx+b](https://tex.z-dn.net/?f=y%3Dmx%2Bb)
Putting the value of the slope
![y=-(1)(x)+b\\y=-x+b](https://tex.z-dn.net/?f=y%3D-%281%29%28x%29%2Bb%5C%5Cy%3D-x%2Bb)
To find the value of b, putting (2,-1) in the equation
![-1=-(2)+b\\-1=-2+b\\b = 2-1\\b=1](https://tex.z-dn.net/?f=-1%3D-%282%29%2Bb%5C%5C-1%3D-2%2Bb%5C%5Cb%20%3D%202-1%5C%5Cb%3D1)
Putting the values of b and m in equation
![y=-x+1](https://tex.z-dn.net/?f=y%3D-x%2B1)
The required equation of line is:
![y=-x+1](https://tex.z-dn.net/?f=y%3D-x%2B1)
Keywords: Equation of line
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Answer:
the second one
Step-by-step explanation:
trust me i've done this before
Answer:
The perimeter of question #1 is 36. The second one is 24 then the third is 19 then 28 then 54
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Base area = side^2 = 3^2 = 9 m^2
Base perimeter = side x 4 = 3 x 4 = 12 m
LA = (base perimeter x slant height)/2 = (12 x 5)/2 = 30 m
SA = base area + LA = 9 + 30 = 39 m^2