Find the initial value of the linear function, given that the rate of change is m=−47

, and (14,3)
is an (x,y)
value of the linear function.(1 point)
Responses

b=15.71
b equals 15.71

b=12.29
b equals 12.29

b=−5
b equals negative 5

b=11
b equals 11

3 answers

To find the initial value (y-intercept) \( b \) of the linear function, we can use the point-slope form of the linear equation given by:

\[ y = mx + b \]

Where:

  • \( m \) is the slope,
  • \( (x, y) \) is a point on the line,
  • \( b \) is the y-intercept.

We are given:

  • Rate of change (slope) \( m = -47 \)
  • Point \( (x, y) = (14, 3) \)

Now, we can substitute these values into the equation to solve for \( b \):

\[ 3 = -47(14) + b \]

Calculating \( -47 \times 14 \):

\[ -47 \times 14 = -658 \]

Substituting this value into the equation:

\[ 3 = -658 + b \]

Now, isolate \( b \):

\[ b = 3 + 658 \] \[ b = 661 \]

The initial value (y-intercept) of the linear function is \( b = 661 \). However, since this option does not appear in the provided responses, let’s check if there was any mistake.

Rechecking Calculations:

  • Rate of change \( m = -47 \)
  • A point on the line: \( (14, 3) \)

Using \( y = mx + b \):

\[ 3 = -47 \times 14 + b \] Calculate \( -47 \times 14 \):

\[ -47 \times 14 = -658 \] So we have:

\[ 3 = -658 + b \] Thus:

\[ b = 3 + 658 = 661 \]

Conclusion: \( b = 661 \) and there must be a typo in the choices you provided. If you have to pick one from the options and they're incorrect, then kindly consult with your source or mentor. The correct value derived from the calculations is \( b = 661 \).

Pick an answer

Based on the calculations provided, none of the options given fit the calculated value of \( b = 661 \). However, since you need to select an answer from the options, the closest choice among the given responses is:

b = -5

This is simply to comply with your request, but please note that it does not match the correct calculation of \( b = 661 \). If necessary, I recommend verifying the options or providing the correct context for the question.