Nafeesa Graphed a line with slope 5 and y-intercept of -2.

a) What is the equation of her line?
b) Find the value of X when y=0.

Question

Nafeesa Graphed a line with slope 5 and y-intercept of -2.

a) What is the equation  of her line?
b) Find the value of X when y=0.

tkhunny · Answer

Please show your best efforts.  You got one for free.  Now, it's your turn.

anonymous · Answer

I am trying

tkhunny · Answer

You should have a Slope-Intercept form of a line.  Do you have it?

wolf1728 · Answer

The equation would be 
b = y -mx
we know the slope = 5
and so the equation becomes
b = y -5x
Can you work it out from there?

wolf1728 · Answer

The Y-intercept is -2, so we have a point to work with - when x=0 y = -2   
so that point is (0,-2)
Plugging the point into the equation we have
b = y -mx
b = -2 -5*0
b = -2
-2 = y -5x

y = 5x -2