Is it:
a.(3,2)
b.(0.5,1.5)
c.(1.5,0.5)
d. no solution
2007-05-02 19:11:43 · 5 answers · asked by Case 1 in Science & Mathematics ➔ Mathematics
If you rewrite the second equation into slope intercept form, y = mx + b, then you have:
y = 5x - 7
y = 5x + 8
Now you can see that they have equal slopes (m = 5), and are therefore parallel. Graphing both lines will also indicate this. Parallel lines do not intersect, so there is no solution to this system.
good luck!
2007-05-02 19:26:16 · answer #1 · answered by birdwoman1 4 · 0⤊ 0⤋
Lines have same gradient of 5
Line 1 passes thro` (0,-7)
Line 2 passes thro` (0,8)
Lines are parallel and do not meet.
i.e. no solution which is Option d.
2007-05-02 19:34:52 · answer #2 · answered by Como 7 · 0⤊ 0⤋
You may notice that the slope of each line is the same, resulting in parallel lines, which do not intersect.
2007-05-02 19:24:42 · answer #3 · answered by Helmut 7 · 0⤊ 0⤋
it is easy just use the simultaneous equation which is
y=5x-7
y=5x-8 and then multiply one by postive one and the other by negative one, once you get that you should find the x or y intersept. easy.
2007-05-02 19:18:04 · answer #4 · answered by dorsey 2 · 0⤊ 0⤋
graph the two lines and where they intersect is the answer
2016-05-19 04:30:32 · answer #5 · answered by ? 3 · 0⤊ 0⤋