How to write (-2,-1) and (2,7) in y=mx+b form

y = 2x + 3

the equation of a line in slope-intercept form is

y = mx + b ( m is the slope and b the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁) = (- 2, - 1) and (x₂, y₂) = (2, 7)

m = = = 2

y = 2x + b ← is the partial equation

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

using (2, 7 ), then

7 = 4 + b ⇒ b = 7 - 4 = 3

y = 2x + 3 ← in slope-intercept form

the solution is x=1

step-by-step explanation:

we are given our   equation as

let's assume

left side function is

right side function is

now, we can draw graph

and then we can get intersection point

the intersection point will be solution

so, the solution is

x=1

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