What is the difference between parentheses and brackets in math?

Parentheses are the symbols that curve forwards and backwards. When numbers and operations are inside the parentheses, it forms a group and it tells you what to do first in a math problem.

Brackets work exactly the same way as parentheses do. Brackets have a shape that looks more boxy but they mean exactly the same thing. Usually, you will see parentheses more frequently than brackets, but brackets are used a lot too.

probability for j is 1/4

while

a is 1/6

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation: