Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)

QUESTION 3

The given relation is

(-4,7), (-3,5), (1,4), (3,-8), (5,-11)

There is no x-value that appears more than once in the relation.

Hence the relation is a function.

Since each x-value has different y-values, the relation is a one-to-one function.

QUESTION 4

The given relation is

(-4,8), (-2,4), (0,1), (2,4), (4,8)

There is no x-value that appears more than once in the relation.

Hence the relation is a function.

Since two different x-values, -2 and 2 has the same y-value of 4, the function is many-to-one.

QUESTION 5

The given relation is

(-2, 1), (-2,3), (0,-3), (1,4), (3,1)

There is an x-value that appears more than once in the relation.

alone has two different y-values.

Hence the relation is NOT a function

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

b). 4320 have a nice day