Question

What is the y-intercept if the line given by the equation y=5x-21?

Answer 1

Explanation:

Slope-intercept form: →
`y=mx+b`

The y-intercept is the point on a graph at which the graph crosses the y-axis.

Used: Rise/Run

`m=(rise)/(run)= (y-b)/(x-0)`

-5 is the slope.

-21 is the y-intercept from the slope-intercept form.

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Answer 2

slope intercept form of a line is

y = mx+b

where m is the slope and b is the y intercept

y=5x-21

5 is the slope and -21 is the y intercept