Answer:
Step-by-step explanation:
Given
The attached graph
Required
Determine the equation
First, pick any 2 corresponding coordinates
Next, calculate the slope (m)
The equation is calculated as:
Where:
and
Make y the subject
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1 answer:
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Total numbers of cars present in the rally is 135
Amount paid by a single driver to participate in the rally = $25
Total amount generated by the participation fee from each driver is equal to the sum of amount paid by all the 135 cars.
Since we cannot add $25 for 135 times, we use multiplication operation.
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Answer:
y = 4x - 15
Step-by-step explanation:
Find slope (m) using of the line that passes through (7, 13) and (4, 1).
Find y-intercept (b) by substituting x = 4, y = 1, and m = 4 in y = mx + b.
Thus:
1 = (4)(4) + b
1 = 16 + b
Subtract 16 from each side
-15 = b
b = -15
substitute m = 4, and b = -15 in y = mx + b, to get the equation.
The equation of the line would be:
✅ y = 4x + (-15)
y = 4x - 15