Step-by-step explanation:
b) y=x+1
table:
_x _|_2x_|_y_|(x, y)|
0 |2(0) |1 |(0, 1)|
1 | 2(1) |2 |(1, 2)|
2 | 2(2) |3 |(2, 3)|
3 | 2(3) |4 |(3, 4)|
c) y=3x+2
_x _|_2x_|_y_|(x, y)|
0 |2(0) |2 |(0, 2)|
1 | 2(1) |5 |(1, 5)|
2 | 2(2) |8 |(2, 8)|
3 | 2(3) |14 |(3, 14)|
To graph, plot the x, y points and connect all of them
ANSWER: ABC and probably e but not sure about that one
EXPLANATION:
A proportional relationship is a relation between two quantities in which the ratio of one quantity to the other quantity is constant… hope this was helpful ;)
Answer:
If z<7, then z-7 is negative, and |z-7| is positive. So, with the understanding that z-7 is positive, the first part of this expression becomes:
7-z for z<7
Similarly: if z<7, then z-9 is negative and |z-9| is positive. Thus, -|z-9| is equivalent to (9-z).
|z−7|−|z−9|, if z<7 becomes (7-z) - (9-z) for z<7. Simplifying this, we get:
7 - z - 9 + z = -2
Answer:
12.) b = (2S/n) - a
13.) x = 1000 - 20y
Step-by-step explanation:
12.) *goal is to isolate b
S = n/2 (a + b)
S(2/n) = a + b
**multiply both sides by 2/n to get rid of n/2
(2S/n) - a= b
***subtract a from both sides to leave b alone on one side
13.) *goal is to isolate x
0.30x + 6y = 300
0.30x = 300 - 6y
** subtract 6y from both sides
x = (300 - 6y)/ 0.30
*** divide 0.30 from both sides to leave x bu itself
x = 1000 - 20y or -20y +1000
****300 ÷ 0.30 = 1000
-6 ÷ 0.30 = -20
Done!
Oh... 1st blank m 2nd blank is b
