Answer:
<em>The equation of the straight line y = -2x +3</em>
<em>y-intercept = 3 and m =-2</em>
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that the points are ( 2,-1) and (-3,9)
The slope of the line

<u><em>Step(ii):</em></u>-
The equation of the straight line passing through the point ( 2,-1) and slope m=-2
y-y₁ = m( x- x₁)
y -(-1) = -2 ( x-2)
y +1 = -2x +4
2x +y +1-4 =0
2x +y -3 =0
<u><em>Final answer:-</em></u>
<em>The equation of the straight line y = -2x +3</em>