Beverly is starting a new diet. her current weight is 160 pounds. she expects to lose 4 pounds per month. if x represents the number of months beverly is on the diet, which linear function models the situation? a) y = 4x − 160 b) y = − 4x + 160 c) y = 1 4 x + 160 d) y = − 4x

The answer is B) or y = -4x + 160

If her initial weight is 160 pounds, then you must subtract 4x, representing how much weight she lost over time, to find her current weight y

But, since y = 160 – 4x isn't an option, we can reverse to negatives as long as you change the addition/subtraction sign

So, subtracting positive 4x is the same as adding -4x

Therefore, y = 160 – 4x is the same as y = -4x + 160

In this context, you would be making a equation using the format: y=mx+b

M being your rate of change

X being the month

B being the starting number

Beverly is LOSING 4 pounds a month, so she would be decreasing by 4, or in other words, -4. That would be your M value

Beverly starts at 160, so that would be your B value

Your equation would look like this:

y= -4x+160

Your answer would be B. y = -4x +160

A) is not the answer because you can't be -160 pounds

C) is not the answer because the 1 is not part of the text.

D) is not the answer because 160 has to be used in the equation in order for it to make sense, you don't start at 0 pounds.

the correct answer is

c. 4

step-by-step explanation:

the given polynomial is

the degree of the polynomial is the highest exponent which is 4.

the -4 is called the leading coefficient.

this polynomial has only one term so it is a monomial.

the correct answer is option c.

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this