Answer:
Step-by-step explanation:
m = -6
Equation: y = mx + b
y = -6x +b
(-4 , 1)
Plugin x = -4 and y = 1 in the above equation
1 = -6*(-4) + b
1 = 24 + b
1- 24 = b
b = -23
Equation: y = -6x - 23
In this question, it is given that y varies inversely as x . So the equation is

And here k is the proportionality constant .
And when x=6, y=12

So the values of the proportionality constant k is 72 and the correct option is B.
If pq=7 and qr=28 then,
p=7/q and r=28/q
pr=7/q×28/q
pr=196/q^2
Hope it helps you
Answer:
12500 cm
Step-by-step explanation:
0,125 km = 125 m (times 1000 because 1 km = 1000 m)
125 m = 12500 cm (times 100 because 1 m = 100 cm)
Answer:
6. yes
7. D if wrong B
8. yes
Step-by-step explanation: