277.Which of the following is the equation of the
line parallel to y= 3x+ 8 and passing through
the point (4,4)?
a.y= 3x + 4
b.y= 3x– 8
c.y= ^13 x+ 8
d.y= –^13 x+ 8
278.Which of the following is the equation of the
line that has y-intercept (0,12) and is parallel
to the line passing through the points (4,2)
and (–5,6)?
a.y= ^49 x+ 12
b.y= –^49 x+ 12
c.y= –^94 x + 2
d.y= ^94 x+ 12
279.Which of the following is the equation of the
line perpendicular to y = –^1138 x+ 5 and passing
through the origin?
a.y= –^1183 x
b.y= ^1138 x
c.y= ^1183 x
d.y= –^1138 x
280.Which of the following lines must be perpen-
dicular to a line with an undefined slope?
a.x= –2
b.y= –2
c.both aand b
d.neither a nor b
281.Which of the following lines must be parallel to
a line with zero slope?
a.x= –2
b.y= –2
c.both aand b
d.neither a nor b
282.A 60-foot piece of rope is cut into three pieces.
The second piece must be 1 foot shorter in
length than twice the first piece, and the third
piece must be 10 feet longer than three times
the length of the second piece. How long
should the longest piece be?
a.37 feet
b.40 feet
c.43 feet
d.46 feet283.At Zides Sport Shop, a canister of Ace tennis
balls costs $3.50 and a canister of Longline
tennis balls costs $2.75. The high school tennis
coach bought canisters of both brands of balls,
spending exactly $40.25 before the sales tax. If
he bought one more canister of Longline balls
than he did Ace balls, how many canisters of
each did he purchase?
a.6 canisters of Ace balls and 7 canisters of
Longline balls
b.6 canisters of Ace balls and 7 canisters of
Longline balls
c.5 canisters of Ace balls and 6 canisters of
Longline balls
d.7 canisters of Ace balls and 8 canisters of
Longline balls- LINEAR EQUATIONS AND INEQUALITIES–