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Answer is: - 3

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x = - 3

Step-by-step explanation:

y = 3x + 2 → (1)

y = x - 4 → (2)

Subtract (2) from (1) term by term

y - y = 3x - x + 2 - (- 4)

0 = 2x + 2 + 4

0 = 2x + 6 ( subtract 6 from both sides )

- 6 = 2x ( divide both sides by 2 )

- 3 = x

5

step-by-step explanation:

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.