Which equality represents a proportional relationship?
a)
−2.8
−2
=
4.2
3
b)
2.6
1.3
=
4.2
2
c)
2
5
=
8
9
d)
3
4
=
7
12

A. Is the answer

Step-by-step explanation:

a)-2.8/-2 = 4.2/3 is the answers in usa prep test

Step-by-step explanation:

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11 -1> 1 -1+ a

-12 > a