The zero property of multiplication states that if a times b equals zero, then either a or b (or both) must equal zero. It is also called the zero product property.
Know MoreMultiplying any number by zero gives a product of zero. Therefore, if the product of two numbers is zero, one or both of those numbers must be zero. This property may seem self-evident, but it can be very useful for many mathematical processes, such as solving quadratic equations. It is important to note that the reverse process, dividing by zero, is not possible in normal mathematics. This why the denominator of a fraction can never equal zero.
Learn more in AlgebraHyperbolas always sit on a certain point that is either on the y or the x axis at -1. The center of the hyperbola remains at that point no matter how far the graph is created from the center or how far it is zoomed out.
Full Answer >To solve the quadratic equation ax^2 + bx + c - 0, plug the corresponding numbers into the quadratic formula. Take the opposite of b, and provide the option of adding or subtracting the square root of (b^2 - 4ac). Divide the result by 2a.
Full Answer >Some students find algebra intimidating because they are uncomfortable replacing numbers with letters. However, basic algebra builds directly on things they already know from arithmetic. To teach beginning algebra, set up short exercises within 20-30 minute lessons using equations that are easy to prove.
Full Answer >Calculating the root-mean-square speed of a gas requires measurements of the gas's temperature and mass. The formula also requires finding the square root, which can be calculated on a graphing calculator and some simple calculators.
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