The mapping diagrams below show 4 different relationships between input and output values. How many of the mapping diagrams represent functions?
А
Output
B
Output
Input
Input
1-
6
2
0
2-
7
4
3-
8
6
4-
9
8
с
D
Input
Output
Input
Output
8
0
3
9
3
5
5
7
9

p> q if you calculate p is100 q is 79

∡ eia and ∡ kij are congruent

step-by-step explanation:

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.