Question

Which is the function represented by the table?

Answer 1

Answer:

f(x)= -2x + 1

Step-by-step explanation:

The function we will find is to be written in slope-intercept form, which is y=mx+b.

One way to find the answer would be by graphing the function, wich you can do on an online calculator or a sheet of paper.

Another way to get to our answer without even having to graph is by finding the y-intercept, or the b, of the function given in the table.

We can do this by looking at the 0 value of the table. The table tells us that the y-intercept is 1.

So, we have to look at our options and see which one has +1 for the y-intercept.

The option f(x)=-2x+1 is the answer

How to check your work: input the given x values into the chosen function, in this case f(x)= -2x + 1

So for example, you could check that this answer is the function by doing

• f(-1) = -2(-1) + 1
• f(-1) = 2 + 1
• f(-1) = 3

Make sure to do this to all values.

Hope this helps!

Answer 2

The answer is A, you would plug in 3 for fx so therefore the answer would be A. Then to make sure plug in the other functions.:)