Question

What is the equation of the line whose y-intercept is 3 and slope is 1?

A. y = x - 3
B. y = x + 3
C. y = 3x + 1

Answer 1

B. y = x + 3

Explanation:

Let m represent the slope of the line.

Let c represent the y-intercept of the line.

Then the equation of the line with slope m and y-intercept c is given by
`\[y=mx+c\]`

In this case, the value of m is 1 and the value of c is 3.

Substituting the given values in the equation:

`\[y=x+3\]`

Among the given options, option B represents the correct equation of the line.