Question

write the equation of a line with a slope of 4 and a y-intercept of −3. 4x y = −3 4x – y = −3 y = −3x 4 y = 4x − 3

Answer 1

y=mx+b
m=slope
b=yintt

slope=4
yint=-3

y=4x-3

Answer 2

The correct option is 4.

Explanation:

The slope intercept form of a line is

`y=mx+b` .... (1)

where, m is slope and b is y-intercept.

We need to find the equation of line whose slope is 4 and y-intercept is -3.

Substitute m=4 and b=-3 in equation (1), to find the equation of required line.

`y=(4)x+(-3)`

`y=4x-3`

The equation of required line is y=4x-3.

Therefore the correct option is 4.