Point C is graphed on a number line at –7. Point D is 13 units away from point C on the number line. What could be the coordinates of point D? Choose all answers that are correct. A. –20 B. 3 C. 6 D. 20
basically, count 13 spaces from negative 7
-7 + 13 and -7 - 13 those are the two answers you will have
what do you think? @vmeza0131
first one is 6 the second one is -20
@Ashes.boom
yup :) nice job
can you help me with some more @Ashes.boom
yea sure whats up
What value of z makes the statement true? –(z + (–17)) = 12 + 17 A. –46 B. –12 C. 12 D. 46
@Ashes.boom
okay so the way i would do this is simplify it as -z - 17 = 12 + 17 then you want to get the variable on one side of the equation by itself. What would you do next?
@vmeza0131
@Ashes.boom i got -12
okay how did you do it
I got something different
−(z−17)=12+17−(z−17)=12+17 −z+17=12+17(Distribute) −z+17=(12+17)(Combine Like Terms) −z+17=29 −z+17=29Step 2: Subtract 17 from both sides. −z+17−17=29−17 −z=12Step 3: Divide both sides by -1. −z −1 = 12 −1 z=−12 Answer: z=−12
@Ashes.boom
okay yea that works lol idk what i did wrong but i just got -12 :)
can you help me with one more @Ashes.boom
yea shoot :)
On a number line, point S has coordinate –1.6 and point T has coordinate –6.5. Which expressions represent the distance between point S and point T? Choose all answers that are correct.
what are the answer choices??
1.|1.6+(-6.5)| 2.|-1.6-(-6.5)| 3.|-6.5-(-1.6)| 4.|-6.5-1.6|
okay whacha thinking
so i have to choose all that are correct so i think its 1 and 4 but i dont know @Ashes.boom
okay one sec ill be right back
Okay i just checked 1 and 4 and they do not come out as the same answer
i don't remember how to do this @Ashes.boom
I might be totally wrong but i think 1, 2, and 3 are all right
the way i did it was drew out a number line and graphed the two points. Then i counted from -1.6 to -6.5. I got 4.9 spaces. Since all of the equations above have the absolute value symbols it means the negatives and positives are neutral. the second one comes out as -4.9 but its absolute value is 4.9 which matches 1 and 3 so i say all three (1, 2, and 3)
make sense??
i gotta go but i hope that helped
that did bye
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