HD Straight line graphs Overview
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Work out the equation of the line which has a gradient of 3 and
passes through the point (-1, 3).
1

The equation of the sraight line  3x- y+ 6 =0

Step-by-step explanation:

Explanation:-

Given that the gradient of the function

   |gradf| = 3  and point (-1,3)

Given that the slope of the line

 m = 3

The equation of the straight line passing through the point(-1,3) and slope m =3

y-3 = 3(x-(-1))

y-3 = 3x+3

3x +3-y+3=0

3x- y+ 6 =0

Final -

The equation of the sraight line  3x- y+ 6 =0

y>10

Step-by-step explanation:

5y+12>62

Subtract 12 on both sides

5y > 50

Divide 5 on both sides

y  > 10