3. Which choice below would ensure that
quadrilateral IJKL is a trapezoid?
A. IJAJK
B. ĪJ | KL
C. IJ KL
D. KL=LI
K
La

1)
table
x        f(x)
1        -7
2       -10
3       -13
4       -16

slope: rise / run = [-10-(-3)]/1 = -3
y-intercept: x=0=> y = -4 =b

equation: y = -3x - 4 this is the rule

2) table

x        f(x)
1         3
2         2
3         1
4         0

slope: rise / run = [2 -1] / [2 -  3] = -1
y-intercep: x = 0 => y = 4 = b

equation: y = -x + 4  this is the rule