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=11
b equals 11

b=12.29
b equals 12.29

b=15.71
b equals 15.71

b=−5

1 answer

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

\[ y = mx + b \]

where:

  • \( y \) is the output (dependent variable),
  • \( m \) is the slope (rate of change),
  • \( x \) is the input (independent variable), and
  • \( b \) is the y-intercept (initial value).

We are given:

  • the slope \( m = -47 \)
  • the point \( (14, 3) \), meaning \( x = 14 \) and \( y = 3 \).

We can substitute these values into the equation to solve for \( b \):

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

Calculating \( -47(14) \):

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

Now substitute this back into the equation:

\[ 3 = -658 + b \]

To solve for \( b \):

\[ b = 3 + 658 \]

\[ b = 661 \]

Upon checking the possible answers (11, 12.29, 15.71, and -5), it looks like none of those options match our calculated \( b \).

Please double-check the point given or confirm the value of the slope, as we derived \( b = 661 \) based on the information provided. If everything is accurate, the initial value (y-intercept) does not match the options given.