252.Determine the missing value ofzthat com-
pletes the following table, assuming that all of
the points are collinear.
a.–11
b. 0
c. 3
d. 8253.A line is known to pass through the points
(0, –1) and (2, 3). What is the equation of
this line?
a.y = ^12 x– 1
b.y= ^12 x+ 1
c.y= 2x– 1
d.y= 2x+ 1
254.Which of the statements is true?
a.A vertical line need not have a y-intercept.
b.A horizontal line need not have a y-intercept.
c.A line with positive slope need not cross the
x-axis.
d.A line with negative slope need not cross the
x-axis.255.A line has a y-intercept of (0, –6) and an
x-intercept of (9, 0). Which of the following
points must also lie on this line?
a.(–6,–10)
b.(1, 3)
c.(0, 9)
d.(3, –8)
e.(6, 13)256.Determine the value ofyif the points (–3, –1),
(0,y), and (3, –9) are assumed to be collinear.
a. 1
b.–1
c.–3
d.–5xy
–4 15
–2 11
2 z
5–3
7–7- LINEAR EQUATIONS AND INEQUALITIES–