What is x? 2x+10=14 and 2x+8=4

first equation is x=2, second equation x= -2

NOTE: one is postive whilst the other is negative

Step-by-step explanation:

first equation;

2x+10=14

2x=14-10

2x=4

x=4/2

x=2

second equation;

2x+8= 4

2x= 4-8

2x= -4

x= -4/2

x=-2

b

step-by-step explanation:

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below: