Q. If 43x+2≤11, what is the greatest possible value of 43x−9 ?Choose 1 answer:(A) −49(B) 0(C) 9(D) 12
Solve Inequality: First, let's solve the inequality (43)x+2≤11 to find the maximum value of x. Subtract 2 from both sides of the inequality to isolate the term with x. (43)x+2−2≤11−2(43)x≤9
Divide by Reciprocal: Now, divide both sides of the inequality by (43) to solve for x. To do this, multiply both sides by the reciprocal of (43), which is (34). (34)×(43)x≤(34)×9x≤12
Substitute x=12: We have found that x is less than or equal to12. Now we need to find the greatest possible value of 43x−9. Substitute x=12 into the expression 43x−9 to find the maximum value. 43(12)−9
Simplify Further: Calculate the value of (43)(12)−9. =3×3−9=9−9=0
Find Maximum Value: The greatest possible value of (43)x−9, when x is less than or equal to 12, is 0. Therefore, the correct answer is (B) 0.