Which of the following is a one-to-one function? A. x=2y^2-3y+5
B. f(x)={-5x-1; x<-2
{square root of 4(x+2) x is greater than or equal to -2
C. y=[x]
D. f(x)={4; 0 less than or equal to x<2
{5; 2 is less than or equal to x<4
{6; 4 is less than it equal to x<6

B

Step-by-step explanation:

Individual value of x gives only one certain value of f(x)

2 different value of x will not result in same value of f(x)

Thus it is one-one

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72

step-by-step explanation: