Line jk passes through points j(–4, –5) and k(–6, 3). if the equation of the line is written in slope-intercept form, y = mx + b, what is the value of b? –21 –4 11 27

b = - 21

Step-by-step explanation:

calculate m using the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (- 4, - 5) and (x₂, y₂ ) = (- 6, 3)

m = = = - 4

y = - 4x + b ← is the partial equation

to find b substitute either of the 2 given points into the partial equation

using (- 4, - 5 ), then

- 5 = 16 + b ⇒ b = - 5 - 16 = - 21

-21

Step-by-step explanation:

We know that the equation of a line passing through points (a,b) and (c,d) is given by :-

Then , the equation of a line passing through points J(-4, -5) and K(-6, 3) is given by :-

Comparing to the general intercept form of equation , we get

The value of

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