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aksik [14]
2 years ago
14

PLEASE SOMEONE HELP ME ANSWER THIS !!!!

Mathematics
1 answer:
Mumz [18]2 years ago
6 0

Step-by-step explanation:

Part A: Linear Equation.

  • One of the points is (0,15). This means 0,15 is the y intercept so b=15.

We can find the slope

\frac{5 - 15}{1  - 0 }  =  \frac{ - 10}{1}  =  - 10

So our equation is

y =  - 10x + 15

Part B: Exponential Equation

We know that

15 = a \times b {}^{0}

B to the zero power is 1 so

15 = a

This means a =15. Now let find b.

5 = 15 \times b {}^{1}

\frac{1}{3}  = b

So the equation is

y = 15( \frac{1}{3} ) {}^{x}

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