Select the solution to the following absolute value equation |x|=20. a. x=-20x or x=10 b. x=20x or x=-20 c. x=10 or x=20 d. x=9 or x=-18

x=20 or x=-20 is correct answer.

Step-by-step explanation:

Given the equation |x|=20.

we have to solve the absolute value equation.

An absolute value equation is an equation which contains an absolute value expression.

The equation  |x|=a has two solutions that are x = a and x = -a because both the numbers are at distance a from 0.

Hence, the solution of |x|=20 are x=20 or x=-20

∴  x=20 or x=-20 is correct answer.

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.