Is (6,-40) a solution of y=-7x+2?
yes or no?
is (3,-19) a solution of y=-7x+2?
yes or no?
2007-10-10 15:00:27 · 11 answers · asked by SOSme 1 in Science & Mathematics ➔ Mathematics
the first answer is yes
-40=-7(6)+2
-40=-40
-19=-7(3)+2
yes
-19=-19
2007-10-10 15:05:46 · answer #1 · answered by Koter Boters misses Rufus! 6 · 0⤊ 0⤋
Yes
2007-10-10 15:03:28 · answer #2 · answered by Dexter D 1 · 1⤊ 0⤋
i'll tell you how to do it, but not do it for you :P
sub in 6 for x in the first equation, and if that leave y equalling -40 then yes. If not, no
sub in 3 for x in the first equation, and if that leave y equalling -19 then yes. If not, no
these get easier after practice.
2007-10-10 15:04:19 · answer #3 · answered by Lenore 1 · 1⤊ 0⤋
Hey, SOS, this should be like falling off a log. Just substitute the first number of the ordered pair in for x, and the second one for y, and do the real tough math yourself. BTW: they are.
2007-10-10 15:05:00 · answer #4 · answered by cattbarf 7 · 1⤊ 0⤋
3x – y = 5 or multiplying by employing 5 15x - 5y = 25------------------- a million 2x + 5y = -8 -------------------- 2: including a million and a pair of, we get 17x = 17 or x =a million and a pair of provides 2 + 5y = -8 or 5y = -10 or y = -2 So (a million, -2) is the answer. for this reason the alternative,"(a million, -2)" is authentic.
2016-10-21 23:51:58 · answer #5 · answered by ? 4 · 0⤊ 0⤋
yes for the first no for the second
2007-10-10 15:05:03 · answer #6 · answered by Charlie H 2 · 0⤊ 1⤋
substitute the first number in each parentheses for x, and substitute the 2nd number in each parenthese for y. if they fit the equations, it's correct. use a calculator if you can't do it on paper.
2007-10-10 15:05:15 · answer #7 · answered by Anonymous · 0⤊ 0⤋
that depends, im only in 7th grade, i am still doing algebra 1
2007-10-10 15:03:37 · answer #8 · answered by Anonymous · 0⤊ 1⤋
yeah, they both work out?
dont mind telling me why?
2007-10-10 15:04:02 · answer #9 · answered by xvx_vx 2 · 0⤊ 1⤋
both are correct
2007-10-10 15:11:08 · answer #10 · answered by Big Blue Wolverine 3 · 0⤊ 0⤋