Find the initial value of the linear function, given that the rate of change is m=−4/7 , and (14,3) is an (x,y) value of the linear function.

1 answer

The formula for a linear function is y = mx + b, where m is the rate of change and b is the initial value.

We are given that the rate of change is m = -4/7. In this case, m represents the slope of the linear function.

We are also given the point (14,3), which means that when x = 14, y = 3.

Using this information, we can substitute the values into the formula and solve for b:

3 = (-4/7)(14) + b

Multiply -4/7 by 14:

3 = -8 + b

Now, isolate b by adding 8 to both sides:

3 + 8 = b

11 = b

Therefore, the initial value of the linear function is b = 11.