The freight charged by a trucking firm for a parcel under 200 pounds depends on the distance it is being shipped. To ship a 150-pound parcel 300 miles, it costs $40. If the same parcel is shipped 1000 miles, the cost is $180. Assume the relationship between the cost and distance is linear. Find the equation for the relationship. Let y be the cost and x be the miles. Write the equation in slope-intercept form.
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 freight charged by a trucking firm for a parcel under 200 pounds depends on the distance it is being shipped. To ship a 150-pound parcel 300 miles, it costs $40. If the same parcel is shipped 1000 miles, the cost is $180. Assume the relationship between the cost and distance is linear. Find the equation for the relationship. Let y be the cost and x be the miles. Write the equation in slope-intercept form.
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