Graph a line with slope 3 passing through (-3, 2)
2 answers:
Answer:
Step-by-step explanation:
Slope
You are given that the slope is 3. So far the general equation is
y = 3x + b
Point
Now you want to solve for (-3,2)
x = -3
y = 2
2 = 3(-3) + b
2 = - 9 + b
b = 2 + 9
b = 11
Answer
y = 3x + 11
Note
I have included the graph to show you that at least the answer goes through (-3,2)
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If the average of x and y is 11 and the average of x, y and z is 5, then the value of z is -7
Given,
The average of x and y = 11
We know average = Sum of the terms / Number of terms
Then, the equation will become
x+y =11×2
x+y =22
Average of x, y and z = 5
x+y+z = 5×3
x+y+z =15
Substitute the value of x+y
22+z=15
z =15-22
x = -7
Hence, If the average of x and y is 11 and the average of x, y and z is 5, then the value of z is -7
Learn more about average here
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