The graph below shows four straight lines, a, b, c, and d:
graph of line a going through ordered pairs negative 2, negative 3 and 2, 5. graph of line b going through ordered pairs negative 2, negative 4 and 2, 4. graph of line c going through ordered pairs negative 2, negative 5 and 3, 5. graph of line d going through ordered pairs 0, negative 4 and 4, 4
which line is represented by the function f(x) = 2x + 1?

Line A is represented by the function f(x) = 2x + 1.

Step-by-step explanation:

This can be solved by trial and error. What it means? It means that we are going to replace the ordered pairs in the function, and the equality must be satisfied.

Line A

(-2,-3)

When x = -2, f(x) = -3. Does it happen in the function?

The first equality is OK. Let's see the second

(2,5)

When x = 2, y = 5.

Also OK.

So line A is represented by the function f(x) = 2x + 1.

Now let's see why the other lines are not represented by this function.

Line B

(-2,-4)

False

Line C

(-2,-5)

False

Line D

(0,-4)

False

well there are two answers for that.

1: you need 120 ones then that will equal up to 120.

2: you could also do one 100 and 2 tens.

those are the answers that i have thought of.

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.