-5x + 6 <= -9 (Remember >= means greater than or equal to)
a. Solve the inequality showing all steps and
b. Describe the graph. (Guide: open or closed circle on what number, arrow to the right or left.)
2007-10-25 16:24:35 · 20 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
-5X + 6 < = -9
-6 -6
= -5x <= -15
----- -----
-5 -5
x >= 3 (the inequality changes because you divided by a negative.)
Draw a graph. On the X axis at 3, put a CLOSED circle. (you are including this point). Draw an arrow (vertical) from that point. And shade to the right of the line.
2007-10-25 16:31:10 · answer #1 · answered by Anonymous · 0⤊ 0⤋
X=>3
2007-10-25 23:27:34 · answer #2 · answered by elena 2 · 0⤊ 1⤋
It's basically the same as -5x + 6 = -9. You solve them the same with the exception that in these problems the arrow flips each time you divide or multiply by a negative number.
-5x + 6 <= -9
-5x<= -9 - 6
-5x <= -15
-5x <= -15
/(over) -5
x => 3
It's been to long since I've done graphs for me to be a help on that.
2007-10-25 23:31:48 · answer #3 · answered by KatieK 4 · 0⤊ 0⤋
-5x+ 6 greater than or equal too -9
subtract 6 from both sides
-5x >= -15
divide both sides by -5 answer x >= 3
should be closed circle on the 3 with an arrow to the right
not 100% sure about the open and closed circle though.
2007-10-25 23:31:28 · answer #4 · answered by budleit2 6 · 0⤊ 0⤋
-5x+6<= -9
-5x+6-6<= -9-6
-5x<= -15
-5x/5<= -15/5
-x=> -3 (switch signs whe you divide negative #'s)
x=> 3 (this is the answer)
X is greater than or equal to 3. Yay!
It's a closed circle, since it can be equal to 3. Then bold the line from there to the end of your line on the side where all the numbers are more than 3. *^_^*
2007-10-25 23:30:00 · answer #5 · answered by momokodragon 2 · 0⤊ 0⤋
-5x+6<=-9
-6 -6
-5/-5x<=-15/-5
(now since ur dividing by a negative # switch the less than sign around)
x=>3
<-5 -4 -3 -2 -1 0 1 2 (3closed circle)--4--5------->
if its just a greater/less than write an open circle if its a greaterthan or equal to/less than or equal to its a closed circle srry i couldnt show in more detail on this computer email if if u need help email me @ jacobsaldinger@sbcglobal.net
2007-10-25 23:33:30 · answer #6 · answered by Qwerty 3 · 0⤊ 0⤋
-5x + 6 <= -9
-5x + 6 -6 <= -9 -6
-(-5x) <= -(-15)
5x >= 15
5x / 5 >= 15 / 5
x >= 3
There would be a closed circle at x = 3 and the arrow would go to the right (towards higher and positive numbers)
2007-10-25 23:30:36 · answer #7 · answered by Your dum 4 · 0⤊ 0⤋
-5x+6<=-9
subract 6 from both sides
-5x<=-9
divide both sides by -5
x<=1.8
because you divided by a negative you have to flip the inequality
x>=1.8
if you have to graph the porblem:
put a filled-in dot on the answer with an arrow pointing to the left
2007-10-25 23:35:17 · answer #8 · answered by justcoollikedat 2 · 0⤊ 0⤋
-5x + 6 <= -9
1) Subtract 6 from each side
--- -5x + 6 (-6) <= -9 (-6) ---> -5x <= -15
2) Divide by -5
--- -5x (/-5) <= -15 ---> x >= 3
Remember you need to flip the sign when you divide by a negative!
Graph:
- closed dot
- arrow is to the right
2007-10-25 23:37:14 · answer #9 · answered by pale_maiden45 3 · 0⤊ 0⤋
-5x+6<=-9
-5x<=-15
-x<=-3
x>=3
b. Place a closed circle on number3, with the arrow line point towards the right
2007-10-25 23:33:35 · answer #10 · answered by Anonymous · 0⤊ 0⤋