Question

Help a girl out it’s due tonight i’m dead

Answer 1

To find the equation of line take any two points on graph,

Point A = (0,3) = (X1,Y1)

Point B = (3,0) = (X2,Y2)

Y intercept is = 3,

Now find the slope of line using two point formula,

$Slope = \frac{Y2-Y1}{X2-X1} \\ \Slope = \frac{3-0}{0-3} = -1$

Equation of the line in standard form is,

$Y - Y1 = m(X - X1)$

where m is the slope of line!

Now substituting Y1, m, X in above equation!

$Y - Y1 = m(X - X1) \\ Y - 3 \: = - 1(X - \: 0) \\ Y - 3 = - X \\ X + Y = 3 \\ Y = 3 - X$

The equation of line in Slope intercept form,

$\fbox{Y = - X + 3}$

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Answer 2

I’m pretty sure it’s y = -x +3 :)