The coordinate grid is an example of which undefined term? a. point b. line c. plane d. rectangle

C.plane

Step-by-step explanation:

We know that there are three undefined terms in geometry :-

1) point 2) line 3) plane.

Here point has no dimension, line has one dimension and a plane has two dimensions.

The coordinate grid has two dimensions ( length and width), then the  coordinate grid is an example of "plane".

Hence, C is the right answer.

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116