Question

Q:write the equation of the line that is given slope an y-intercept?

Slope=Undefined y-intercept= -4


`y = mx + b`

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Answer 1

if the slope is undefined, that means it is just a vertical line. All vertical lines can be written as: x=a with a being the x-intercept. However, you are given a y-intercept. Therefore, it must be on the y-axis. So the equation should be x=0

Answer 2

y = mx - 4

Explanation:

m is the slope, while -4 is the y intercept