Aline passing through which of the following pairs of coordinates represents a proportional relationship?
a.
(1.3, 3.3) and (2.3, 4.3)
b.
(2.5, 5) and (3, 5.5)
c.
(1.25, 2.25) and (2.5, 5)
d.
(1.25, 2.5) and (3.75, 7.5)

D

Step-by-step explanation:

A proportional relationship is a relationship where the x and y values form equal ratios. The ratio is written as y/x.

A.  

(1.3, 3.3) and (2.3, 4.3)

3.3/1.3 = 4.3/2.3 are not equal

B.  

(2.5, 5) and (3, 5.5)

5/2.5 = 5.5/3 are not equal

C.  

(1.25, 2.25) and (2.5, 5)

2.25/1.25 = 5/2.5 are not equal

D.  

(1.25, 2.5) and (3.75, 7.5)

2.5/1.25 = 7.5/3.75 are equal.

1. 34

2. 268

3. x=14.4

step-by-step explanation:

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5