2 years ago

Janice earns £1,220 per month. She has to pay rent at £400 per month and utilities at

1 answer:

6 0

Okay so if you grab the 400 and subtract that from 1220 which equals 820. After that you should subtract the 100 and 200 from 820 since she is using that for utilities and food. Which then equals to 520 and that should be to your answer. Hope that helps

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Answer:

(see attached workings)

y = -4x + 2

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Step-by-step explanation:

Rewrite the function to make y the subject.
Find the x values of the points when y=-2 by substituting y=-2 into the rewritten function
Differentiate the function
Input the found values of x into the differentiated function to find the gradients of the tangents to the curve at y=-2
Use the equation of a straight line and the points where y=-2 and the found gradients to find the equation of the tangent lines.

See attached for complete step-by-step.