Kaitlin solved the equation for x using the following calculations.

Answer a  because you do the opposite so adding would be the correct way

Option 1

Step-by-step explanation:

Given is an equation in one variable x.

It is as follows:

-5.4+x=12.2

To solve for x, we must make left side only with x and eliminate -5.4

For this only way is to add 5.4 to both the sides of the equation without affecting the equality.

When we add 5.4 to both sides -5.4 gets cancelled with 5.4 and make left side only x

-5.4+x=12.2

+5.4       5.4

x         =17.6

Thus we get answer correctly as 17.6

Kaitlin instead subtracted 5.4 from both the sides which made the equation

as

-10.8+x=6.8

Thus her answer 6.8 is incorrect

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)