A solid line passing through points (1, 2) and (2, 5) has shading below. y 3x - 1

Question

A solid line passing through points (1, 2) and (2, 5) has shading below.

 y < 3x - 1

 y ≤ 3x - 1

 y ≥ 3x - 1

 y > 3x - 1

solomonzelman · Answer

Plug in the 2 points to fond the slope into the slope formula, and once you get the `y=mx+b` with the know slope, plug in any of the 2 points to solve for the y-intercept, b.

Then once you know m and b, re-write the equation that you get.

Then after that, shade everything that is above this (solid) line.

Also, being that it is SOLID, not dashed, eliminate A and D.

solomonzelman · Answer

Just giving you the slope formula

$\huge\color{blue}{    \rm{slope}~=~ \frac{y_1-y_2}{x_1-x_2}  }$

anonymous · Answer

so ok this what i got $$y \le3x-1$$

solomonzelman · Answer

I think it is the other way, because it is shaded above the line, no ?

anonymous · Answer

@SolomonZelman

solomonzelman · Answer

Yes ?