Can someone help me again please
2 answers:
A.) 23 degrees Celsius
b.) y=23-5x
btw I'd rearrange this as
y= -5x+23
If you want to find changes in y, let's compare differences when we change the x.
For example, if x=1
y= -5(1)+23
-5+23=18
So, when x=1, y=18
Now, let's have x=2
y= -5(2)+23
-10+23=13
So, when x=2, y=13
Let's compare the difference in y by subtraction.
18-13=5
So, with every kilometer that you fly up from the surface, the temperature decreases by 5°C
So, in the box, put -5
Answer:
i) = 23 °C
ii) = 4.4° C
Step-by-step explanation:
i) The temperature on the surface of the planet.
At the surface of the planet the height is Zero
Therefore, X = 0
Thus; using the equation, the temperature, y will be;
y = 23 - 5x
y = 23 - 5(0)
<u> = 23 °C</u>
ii) the temperature change for every kilometer from the surface,
From the equation;
y = 23 - 5x
we take, y to be 1
Therefore;
1 = 23 -5x , subtracting 23 on both sides we get
-22 = -5x
x = -22/-5
<u> = 4.4° C</u>
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