Which of the following is true about the graphs f(x)=x and g(x)=f(x+10)

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1. A

2. A

3. C

4. A

Step-by-step explanation:

1. Three consecutive integers are represented as n, n+1, and n+2. The sum

n+(n+1)+(n+2) = # must be only true using integers (no fractions/decimals).

So try the first answer 65.

n+(n+1)+(n+2) =65

3n+3=65

3n=62

n=62/3

n=20.6666666666666

This is not an integer so A is the solution.

2. The first train arrives at 48t since it travels 48 km per hour for t hours.

The second train is 68(t-4) since it travels 68 km per hour for the same t hours minus 4 (it left 4 hours later). The time they reach each other is when they are equal. So 68(t-4)=48t or answer A.

3. Two consecutive integers are represented as n and n+1. Notice when added they must equal -27. The only answer option that works is -14 + -13 = -27. Answer C is the solution.

4. The length is one fourth of its width is multiplication by 1/4. So l = 1/4 w or answer A is the solution.