Question

What the y-intercept in the equation y= 4x - 3?​

Answer 1

-3

Explanation:

The slope-intercept form of an equation of a line:

y = mx + b

m - slope

b - y-intercept

We have the equation

y = 4x - 3

therefore

slope = 4

y-intercept = -3

Other method

y - intercept is for x = 0.

Substitute x = 0 to the given equation y = 4x - 3:

y = 4(0) - 3 = 0 - 3 = -3

Answer 2

-3

Explanation:

Note the parts of the equation:

y = mx + b

y = (x , y)

m = slope

x = (x , y)

b = y-intercept

In this case: y = 4x - 3

x = x

y = y

m = slope = 4

b = y-intercept = -3

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