# HW 31 - Helix Algebra

``` Assignment #31 Name:________________________________ Plotting Points; Vertical and Horizontal Lines **Use the coordinate planes provided on a separate sheet of paper &agrave;ο Plot the four points on the coordinate plane. Connect the points to form a rectangle. 1.) Find the PERIMETER: (−4 , 0) (−4 , 6) (5 , 0) ( 5, 6) Perimeter: ___________ 2.) Find the AREA: (0 , 0) (−4 , 0) (0 , 7) ( −4, 7) Area: ___________ &agrave;ο Plot the three points on a coordinate plane. Connect the points to form a triangle, then find the !
AREA. π΄πππ ππ π π‘πππππππ = (πππ π β βπππβπ‘) !
!
!
!
3.) (1 , 2) (7 , 2) (1 , 6) −
4.) ! −4 , ! ! !−4 ,
!! !0 ,
! ! Area: __________ Area: __________ &agrave;ο Graph and label the three lines on the same coordinate plane. If the lines cross, label the coordinates of the point where the lines meet. 5.) π¦ = 5 , π₯ = 4 , π¦
= −1 6.) π¦ = 3, π¦ =
0 , π₯ =
−2 π¦ = −4 , π₯ = 0 , π₯ = 2 7.) &agrave;ο Graph the four lines on the same coordinate plane. From the rectangle formed by the lines, find: 8.) Perimeter: π¦ = 0, π₯ = 4, π¦ = 6, π₯ = 0 Perimeter: ___________ 9.) Area: π¦ = 6, π₯ = −4 , π¦ = −1 , π₯ = 5 Area: _____________ &agrave;ο Use the graph below to answer questions 10-&shy;β14: Marks Bank Account Balance: \$20 \$15 Marks Money \$10 \$5 Jan Feb. Mar. Apr. May Jun. July Aug. Sep. Oct. Nov. Dec. -&shy;β \$5 -&shy;β\$10 -&shy;β\$15 -&shy;β\$20 10.) In which month did Mark have the most money? _____________________ 11.) In which months did Mark owe the bank money? ______________________ 12.) Plot points to represent the following: *In May, Mark had \$3. *In April, Mark had \$12. *In June, Mark had \$0. 13.) What month did Mark have \$18? ___________________ 14.) Predict how much money you think Mark will have in December then justify your reasoning. &agrave;ο Write the rule for each table (Hint: how can you get from x to y) 15.) π₯ π¦ 16.) π₯ π¦ 17.) 3 10 8 38 3 24 5 5 50 494 14 14 14 6 1 9 9 6 7 2 2 2 8 7 64 π₯ π¦ 0 1 0 0 -&shy;β4 -&shy;β7 -&shy;β37 -&shy;β4 -&shy;β10 -&shy;β29 -&shy;β9 -&shy;β10 -&shy;β106 π¦ = __________________ π¦ = __________________ π¦ = __________________ ```