The billing schedule fordental X-rays specifies a fixed amount for the office visit plus a fixed amount for each X-ray exposure. Equation format is y = mx + b. a. Write the equation when 2 X-rays cost $37, m and b are not known. b. Write the equation when 4 X-rays cost $54, m and b are not known. c. Use the two equations to find m and b. d. Find the cost of 5 exposures.
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
The billing schedule fordental X-rays specifies a fixed amount for the office visit plus a fixed amount for each X-ray exposure.
Equation format is y = mx + b.
a. Write the equation when 2 X-rays cost $37, m and b are not known.
b. Write the equation when 4 X-rays cost $54, m and b are not known.
c. Use the two equations to find m and b.
d. Find the cost of 5 exposures.
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