Question

write a piecewise function for the graph please

Answer 1

http://dc14.arabsh.com/i/03034/htbg7dwluhkt.jpg

Answer 2

you just have to find the eqns of the three lines first

Answer 3

so for the line to the left of the page , its eqn is y=-4, its 4units below the x axis

Answer 4

then for the line segment in the middle

it goes through points (-2,-1 ) and (3,3)

so we can find its gradient , m = (3 -(-1) ) / (3-(-2) ) = 4/5

so we know the graident then we just need one point and then we can use point slope form of a line

Answer 5

so take the point (3,3) , y-3 = (4/5) (x-3)

rearrange y= (4/5)x - (12/5) +3

Answer 6

y=(4/5)x+(3/5) is the eqn of the second line

Answer 7

similarly for the third , find the qn of the line between (3,6) and (9,0)

Answer 8

thanx