168k views
3 votes
Write a linear function f with the values f(3)=-4 and f(5)=-4

1 Answer

3 votes

To write a linear function f(x) with the values f(3) = -4 and f(5) = -4, we can use the point-slope form of a linear equation:

f(x) - y1 = m(x - x1)

where (x1, y1) is a point on the line and m is the slope of the line.

Using the two given points, we have:

f(3) = -4 and f(5) = -4

This means that (3, -4) and (5, -4) are two points on the line.

To find the slope, we can use the slope formula:

m = (y2 - y1) / (x2 - x1)

m = (-4 - (-4)) / (5 - 3)

m = 0 / 2

m = 0

Therefore, the slope of the line is 0.

Using the point-slope form with the point (3, -4) and the slope m = 0, we get:

f(x) - (-4) = 0(x - 3)

f(x) + 4 = 0

f(x) = -4

So, the linear function f(x) that passes through the points (3, -4) and (5, -4) is f(x) = -4.

User Jason Song
by
8.3k points

No related questions found