Write an equation in direct variation form that contains the point (-8, -4). i need

y = 1/2 x.

Step-by-step explanation:

The graph of the equation will pass through the origin because it is direct variation, and its slope will be -4 /-8 =  1/2.

Therefore the equation is y = 1/2 x.

see explanation

Step-by-step explanation:

given that y varies directly as x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the point (- 8, - 4), that is x = - 8 and y = - 4

k = = = , hence

y = x ← equation of variation

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.