Answer:
y = 1/3x - 3
Step-by-step explanation:
If the line is perpendicular to y = -3x + 11, it means that the two gradients multiply to make -1.
So the gradient of the perpendicular line is 1/3 (-3 × 1/3 = -1)
y = 1/3x + c
Next, substitute x = -9, and y = -6 to find the y intercept, or c:
-6 = 1/3(-9) + c
-6 = -3 + c
c = -6 + 3
c = -3
The equation of the line is y = 1/3x - 3
The rate of change is 1/4 and the y intercept is -4
Answer:6/25
Step-by-step explanation:
Y varies inversely as x²
Y =k/x²
Y= 6, x = 30
Substitute the value of y and x
6 = k/30²
Make k the subject of the formula
k = 6/900
k =1/150
The equation connecting Y and x is
Y = x²/150
When x = 6
Y= 6²/150
Y= 36/150
Y= 6/25
The Mean Absolute Deviation is - 0 +0+0+1+3+8 = 24/ 6 which would = 4 that's the answer to your question .
Hope that it helps .
25% is the same as 1/4. To find how many students are in the class, you need to multiply 8 by 4. Hope this helps!
Heather :)
