Elus
assume that y varies inversely
with x. if y = 7 when x = -2, find y
when x = 7.
resources
y = [? ]

When x = 7, y = -2

Step-by-step explanation:

According to question,

y ∝ 1 / x

To remove proportionality, include a constant. Let the constant be k.

y = k × (1 / x)

Now, we know that y = 7 when x = -2

y = k × (1 / x)

7 = k × (1 / -2)

k = -14

The equation now becomes,

y = -14 × (1 / x)

Now, we need to find y when x = 7.

y = -14 × (1 / 7)

y = -2

So, when x = 7, y = -2.

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

happy to

pls mark as brainliest

a

step-by-step explanation: