Y = 2x + 4 y = 3x +2 Graph and give me the points of this linear equation

1 answer:

7 0

Y=2x+4 would start at the y intercept of 4, so (0,4) then go up 2 since it’s a positive slope and go over one, up two over one. And repeat.

Y=3x+2 would start at the y intercept of 2 and go up 3 over 1 and repeat, then graph the line!

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The price of a flight was increased by 3% to £650. What was the price before the increase? Give your answer to the nearest penny

Marta_Voda [28]

Answer:

£631.07

Step-by-step explanation:

Increasing a value by 3% is the same as taking 103% of it - you have the original price (100%) plus an additional 3% of it. Let's call the original price here p. We're told that after a 3% increase, the price goes up to £650. Put another way: 103% of p is £650. In equation form:

$1.03p=650$

To solve for p, we can simply divide both sides of our equation by 1.03 to get

$p=650/1.03\approx631.07$

So our orignal amount, to the nearest penny, was £631.07

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arsen [322]

The function that represents Wayne´s elevation:
y = 30 x - 105
The function that represents Winston´s elevation:
- 100 = 0 m + b
b = -100
-16 = 3m - 100
3 m = 84
m = 84 : 3 = 28
y = 28 x - 100
Surface level: y = 0
Wayne:
0 = 30 x - 105
x = 3.5 minutes
Winston:
0 = 28 x - 100
x = 3.57 minutes
If they both ascend at the same rate, Wayne will be first to the surface.

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What is the correct proportion for corresponding sides? (Last question)

Sonja [21]

check picture below