Answer:
b
Step-by-step explanation:
In y=mx+b form, the b is the y-intercept, therefore where the line crosses the y-axis on the graph. In this graph, the line crosses the y-axis at 100. This means that the "b" value is 100. So far, our equation is y=mx+100.
Next, to find m, you go to any other point on the graph and see how much units (rise over run) you went to get there. I picked the point (2,150), You can see that it took me 1 unit up and 2 units to the right to get to that point, leading us to believe the slope is 1/2.
Finally, put everything together and you get the answer of y=1/2x+100 (the letters do not matter) :)
Solving for y right?
2y = 3x + 4 - x
2y = 2x + 4
y = 2x + 4 over 2
y = 2 (x + 2) over 2
y = x + 2
y - 3 = 2x - 6 over 2
y - 3 = 2(x - 3) over 2
y - 3 = x - 3
y = x
x - y - 2 = 2(2x + 1)
-y - 2 = 2(2x + 1) - x
-y = 2(2x + 1) - x + 2
y = -2(2x + 1) + x - 2
Answer:
Step-by-step explanation:
i dont know sorry
Use substitution:
<span>we're going back to substitution:
therefore
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Answer:
24. a) ⅞ b) 1⅘
17. 36
Step-by-step explanation:
24.
a) ½ × ¾ + 3/2 × ⅓
3/8 + 1/2
(3 + 4×1)/8
7/8
b) 1½ ÷ (1½ - ⅔)
3/2 ÷ (3/2 - 2/3)
3/2 ÷ (3×3 - 2×2)/6
3/2 ÷ 5/6
3/2 × 6/5
18/10
1 8/10
1⅘
17. 1 day = 24 hours
1.5 days = 1.5× 24= 36 hours
