7.
Direct variation is:

Where 'k' is the constant of variation. Let's plug in y = -6 and x = 10 into the formula:

Divide 10 to both sides:

Plug this in for 'k' in our formula:

This is our formula. To find out what 'y' is when 'x' = 5, plug in 5 for 'x':

Multiply:

9.
Let's plug in y = 9 and x = 8 into our formula:

Divide 8 to both sides:

So our equation is:

Now let's plug in 18 for 'y' to find out what 'x' is when y = 18:

Divide 9/8 to both sides or multiply by its reciprocal 8/9:
Answer:
A
Step-by-step explanation:
v - 2u
= < - 2, 4 > - 2 < 2.5, - 4 > ← multiply each component by 2
= < - 2, 4 > - < 5, - 8 > ← subtract corresponding components
= < - 2 - 5, 4 + 8 > = < - 7, 12 >
Graph A shows the resulting vector
Answer:
The Qn aint correct
it would make more sense if the figures invested where different
8% of 19k + 9% of 19k =1620
the figures are the same so even if we shifted the first 19k to the second side of 9% still it could make no sense(remain the same)
Answer:
????
Step-by-step explanation: