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yarga [219]
2 years ago
15

Help me find the equation to go with this graph please i give brainlist

Mathematics
1 answer:
Leviafan [203]2 years ago
7 0

Answer:

Step-by-step explanation:

Step 1: The general equation of straight line is

     y = mx + c

c = initial value

m = rate of change

Step 2: Initial value c = 20

Step 3: Rate of change

m = \frac{y2 - y1}{x2 - x1}

Step 4: From the graph, pick two points

x1 = 0, y1 = 20

x2 = 4, y2 = 2

Step 5: By substitution, rate of change m = \frac{21-20}{4-0}

m = \frac{1}{4}

Step 6: Equation of the graph

y = mx + c

y = \frac{1}{4}x + 20

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y = A (r)^t

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9514 1404 393

Answer:

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