Use input-output tables to determine which graph accurately represents the function f(x)=12x+3

with inputs of −4
, −2
, 0, 2, and 4.(1 point)
Responses

Five points are plotted on a coordinate plane, and a line is graphed passing through them. The x-axis ranges from negative 4 to 4 in increments of 1. The y-axis ranges from negative 10 to 10 in increments of 1.
Image with alt text: Five points are plotted on a coordinate plane, and a line is graphed passing through them. The x-axis ranges from negative 4 to 4 in increments of 1. The y-axis ranges from negative 10 to 10 in increments of 1.

Five points are plotted on a coordinate plane, and a line is graphed passing through them. The x-axis ranges from negative 4 to 4 in increments of 1. The y-axis ranges from negative 10 to 10 in increments of 1.
Image with alt text: Five points are plotted on a coordinate plane, and a line is graphed passing through them. The x-axis ranges from negative 4 to 4 in increments of 1. The y-axis ranges from negative 10 to 10 in increments of 1.

Five points are plotted on a coordinate plane, and a line is graphed passing through them. The x-axis ranges from negative 4 to 4 in increments of 1. The y-axis ranges from negative 10 to 10 in increments of 1.
Image with alt text: Five points are plotted on a coordinate plane, and a line is graphed passing through them. The x-axis ranges from negative 4 to 4 in increments of 1. The y-axis ranges from negative 10 to 10 in increments of 1.

Five points are plotted on a coordinate plane, and a line is graphed passing through them. The x-axis ranges from 0 to 7 in increments of 1. The y-axis ranges from negative 5 to 5 in increments of 1.
Image with alt text: Five points are plotted on a coordinate plane, and a line is graphed passing through them. The x-axis ranges from 0 to 7 in increments of 1. The y-axis ranges from negative 5 to 5 in increments of 1.

3 answers

To determine which graph accurately represents the function \( f(x) = 12x + 3 \) with the given inputs of \( -4, -2, 0, 2, \) and \( 4 \), we first need to calculate the outputs (or \( y \)-values) for each of these inputs.

Let's compute the function for each input:

  1. For \( x = -4 \): \[ f(-4) = 12(-4) + 3 = -48 + 3 = -45 \]

  2. For \( x = -2 \): \[ f(-2) = 12(-2) + 3 = -24 + 3 = -21 \]

  3. For \( x = 0 \): \[ f(0) = 12(0) + 3 = 0 + 3 = 3 \]

  4. For \( x = 2 \): \[ f(2) = 12(2) + 3 = 24 + 3 = 27 \]

  5. For \( x = 4 \): \[ f(4) = 12(4) + 3 = 48 + 3 = 51 \]

Now we can summarize the input-output pairs: \[ \begin{align*} (-4, -45) \ (-2, -21) \ (0, 3) \ (2, 27) \ (4, 51) \ \end{align*} \]

Next, let's analyze the potential graphs. The function is a linear equation, and based on the calculated outputs, we expect the coordinates to fall within a certain range on the y-axis. Here are the outputs we expect based on our calculations:

  • The \( y \)-values range roughly from \(-45\) to \(51\).

Given the provided descriptions of the graphs, we can conclude:

  • The graph plotted within the ranges from \(-10\) to \(10\) cannot accurately display any of our outputs, as our maximum output is \(51\) and our minimum output is \(-45\).
  • The other graph that ranges from \(0\) to \(7\) is also not appropriate, as our output values are not within that range.

However, none of the provided graphs have the appropriate scaling to represent the outputs accurately. Based on the calculations, all feasible values lie far outside the ranges of the y-axes indicated in the graph descriptions.

As such, if you are forced to select based on appearances, look for any graphs that might scale at a higher value (if there were any additional options outside this or an error in the y-values' scaling), but based strictly on the outputs calculated, none of the offered descriptions match the appropriate function graph for \( f(x) = 12x + 3 \).

Pick the one that is most right bot

Based on the calculations of the function \( f(x) = 12x + 3 \) for the given inputs, we found the following output values:

  1. \( f(-4) = -45 \)
  2. \( f(-2) = -21 \)
  3. \( f(0) = 3 \)
  4. \( f(2) = 27 \)
  5. \( f(4) = 51 \)

Given the range of outputs, we noted that they fall well outside the range of -10 to 10 or 0 to 7. However, if I must choose the graph that is "most right" based on the provided information, it would be any of the graphs that attempt to show a linear function, keeping in mind that ideally, they should all graphically represent the calculated outputs.

Thus, if forced to select one among the multiple options vaguely presented (acknowledging all have discrepancies), pick:

  • The graph that plots points in increasing order (likely the one with outputs for \( x=-4 \) resulting in negative and then gradually increasing). This reflects the essence of a linear function resembling \( f(x) = 12x + 3 \).

If you have specific images or further descriptions, I could help narrow this down even more accurately.