Question

Explain how to find the value of a line's y-intercept using its point-slope equation.

Answer 1

See below

Explanation:

The point-slope form of a line looks like
y -
`y_(1)` = m( x -
`x_(1)`)

The number that is the place of the 'm' is the slope.

For example:

If we had the equation

y - 3 = 12(x +4)

The slope would be 12.

Answer 2

Given the point-slope form of a line, y = mx + b, to get the y-intercept of a line, you first have to solve for b by setting x = 0. This gives you the b-value of y = 0 + b = b. We see that b is the y-intercept.

Explanation: