Answer:
see explanation
Step-by-step explanation:
Given that y varies inversely as x then the equation relating them is
y = 
← k is the constant of variation
To find k use the condition y = 5 , x = 21
k = yx = 5 × 21 = 105
y = 
← equation of variation
When x = 10, then
y = 
= 10.5
To solve this I will be using substitution
-4 + 11y = 15
solve for y so
-4 + 11y = 15
11y = 19
y = 19/11
x = 2(19/11)
19/11 x 2 = 38/11
x = 38/11
x = 38/11
y = 19/11
I hope this helps!
I would say 2,15 and 4,9 as it shows that the line changes angles between the two points.
Answer:
<em>JM = 5 mm </em>
Step-by-step explanation:
Δ JMK is the right angled triangle ⇒ JM² = JK² + KM²
JM² = 3² + 4²
<em>JM = 5 mm</em>
I just started doing function in my Algebra class. So what I was taught was there can't be more than 1 output aka "y" for one input aka "x".
So with the ordered pairs you have above is a function because there's only 1 output coming out. I have a picture showing why. It's labeled a purple one.
You know a graph or anything is not a function because it has more than 1 output which is not okay. For example: (1,6), (5,3), (2,9), and (1, 7) Now you notice that I have two coordinate pairs that have x for 1 and y for 6 and 7. I have another picture showing a example of a non-function.
