Which phrase describes the algebraic expression 5f-2? A=The product of 5 and 2 more than a number
B=The quotient of 5 and 2
C=5 times the difference of a number and 2
D=less than t=5 times a number

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

40 i don’t know lololol