If you have a graphing calculaator enter the matrix then on the outside of it hit the ^ button and put -1
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X²+35=0
X(x+35)=0
X=0 x+35=0
-35 -35
X=-35
x=0, x=-35
K · ( 0, 0 ) = ( 0 , 0 )
k · ( 0 , 4 ) = ( 0 , 10 )
k · ( 6, 0 ) = ( 15, 0 )
k = 15/6 = 10/4 = 2.5
The answer would be: 2.5
1. a) Find the y-intercept of the line, then you find the slope the line, and then you can write the equation in y-intercept form, which is y=mx+b, m is the slope and b the y-intercept.
y= x+70 is the equation
b) 70
c) 120
It took me awhile but I got it
m= -2/7
b=5 5/7
or
y=-2/7x+5 5/7
