The rate of buyers for Roby's hotdogs are increasing at a rate of 10 persons per day. The first day had 200 customers.
The equation for this data is .

y = 200 x + 10

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y = - 200 x + 10

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y = 10 x + 200

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y = - 10 x + 200

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Solution

The correct option is C $y = 10 x + 200$
It is given that on the first day, there were 200 customers.

∴ Value of y-intercept, $b$ = 200

It is also given that number of buyers for hotdogs are increasing
by 10 persons per day.

∴ Value of slope, $m$ = 10

Equation of line with y-intercept of value $b$ is,
$y = m x + b$

So, the correct equation for the straight line is,
$y = 10 x + 200$

Graphically representing this data, we get,

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The rate of buyers for Roby's hotdogs are increasing at a rate of 10 persons per day. The first day had 200 customers. The equation for this data is .

The rate of buyers for Roby's hotdogs are increasing at a rate of 10 persons per day. The first day had 200 customers.
The equation for this data is .