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Mateo makes clay sculptures and ships them to buyers throughout the country. The function f(x)f(x) gives the cost, in dollars, of shipping a box that weighs xx pounds.\newlineWhat does f(7) < 10 tell you?\newlineChoices:\newline(A)It costs Mateo less than $7\$7 to ship a box weighing 1010 pounds.\newline(B)It costs Mateo less than $10\$10 to ship a box weighing 77 pounds.

Full solution

Q. Mateo makes clay sculptures and ships them to buyers throughout the country. The function f(x)f(x) gives the cost, in dollars, of shipping a box that weighs xx pounds.\newlineWhat does f(7)<10f(7) < 10 tell you?\newlineChoices:\newline(A)It costs Mateo less than $7\$7 to ship a box weighing 1010 pounds.\newline(B)It costs Mateo less than $10\$10 to ship a box weighing 77 pounds.
  1. Interpret Function at x=7x=7: The inequality f(7) < 10 is given, where f(x)f(x) represents the cost of shipping a box that weighs xx pounds. To understand what f(7) < 10 means, we need to interpret the function ff at the value x=7x = 7 and compare it to the number 1010.
  2. Evaluate f(7)f(7): Substitute x=7x = 7 into the function f(x)f(x) to evaluate f(7)f(7). Since we are not given the explicit form of the function f(x)f(x), we cannot calculate the exact value of f(7)f(7), but we can understand that f(7)f(7) represents the cost of shipping a box that weighs 77 pounds.
  3. Interpret Inequality f(7) < 10: The inequality f(7) < 10 tells us that the cost of shipping a box that weighs 77 pounds is less than $10\$10. This is a direct interpretation of the inequality, where the left side is the cost of shipping and the right side is the dollar amount we are comparing it to.
  4. Compare Choices: Now, let's look at the choices given to determine which one correctly interprets the inequality f(7) < 10.
    (A) This choice suggests that it costs less than $7\$7 to ship a box weighing 1010 pounds, which is not what the inequality f(7) < 10 indicates. It has reversed the weight and the cost.
    (B) This choice suggests that it costs less than $10\$10 to ship a box weighing 77 pounds, which correctly interprets the inequality f(7) < 10.

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