Question

Write the equation for the linear function.

A={(x,y):(4,2)(0,1)...}

1. y=-x/4+1
2. y=-4x+1
3. y=x/4+1
4. y=4x+1

Answer 1

The answer to your question is number 3.

Explanation:

Data

A (4, 2)

B (0, 1)

Process

1.- Find the slope

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

- Substitution

m = (1 - 2) / (0 - 4)

- Simplification

m = -1/-4

= 1/4

2.- Find the equation of the line

y - y1 = m(x - x1)

- Substitution

y - 1 = 1/4(x - 0)

-Simplification

y - 1 = 1/4x

- Result

y = 1/4x + 1