Search for tag: "cross"

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02:56 Finding the vertex, intercepts, and axis of… Finding the vertex, intercepts, and axis of symmetry from a graph of a parabola	Finding the vertex, intercepts, and axis of symmetry from a graph of a parabola This gives a graph of a parabola which is the graph of a quadratic equation or function. The demonstration first includes classifying it as a parabola that is opening downward or upward. Then it… math math emporium parabola quadratic equation function axis of symmetry x-intercept y-intercept vertex axis intercepts symmetry equation graph answers comma coordinates courses cross crosses lines middle water cup dome downward From Tom Grant 7 plays 0
05:06 Solving a rational equation that simplifies to… Solving a rational equation that simplifies to quadratic: Proportional form, basic	Solving a rational equation that simplifies to quadratic: Proportional form, basic Single fractions set equal to each other forms a proportion. When presented with this, it can be "cross multiplied" to eliminate the fractions. The resulting equation has a term with the… math math emporium cross multiplication proportion quadratic equation equations side linear equation answers sides subtraction x. bottom times ratio form checks objects equals answer works thing numbers alright From Tom Grant 6 plays 0
01:43 Solving a rational equation that simplifies to… Solving a rational equation that simplifies to linear: Denominator x + a	Solving a rational equation that simplifies to linear: Denominator x + a Shows cross multipication of two single fractions set equat to each other to create a new equation that has no fractions and is then solvable by the typical methods. math math emporium cross multiplication linear equation rational equation fraction sides fractions side times variable answer fifths result equals switch left additions signs front form denominator linear equation From Tom Grant 15 plays 0
03:57 Power and quotient rules with negative exponents:… Power and quotient rules with negative exponents: Problem type 2	Power and quotient rules with negative exponents: Problem type 2 Another example of simplifying a fraction in parentheses raised to a power math math emporium algebra power rule for exponents negative exponents 24th 20th times exponent power salon factors exponents cross fraction ways sheets seconds force answer naught inside fifths ps positions change thing bottom numbers From Tom Grant 26 plays 0
01:39 Finding intercepts of a nonlinear function given… Finding intercepts of a nonlinear function given its graph	Finding intercepts of a nonlinear function given its graph Just showiing how to locate and write down the x-intercepts and y-intecepts when looking at a graph math math emporium algebra x-intercept y=intercept graph intercepts axis direction points point coordinates comma boxes function linear cross From Tom Grant 20 plays 0
03:04 Applying the percent equation: Problem type 1 Applying the percent equation: Problem type 1	Applying the percent equation: Problem type 1 Using the proportion %/100 = Amount/Base to plug in what's given to find what is asked for. math math empoirum algebra proportion percents amount percent base percentage form equals equation cross ratios ratio explanations alex places rise times decimal first% questions answers From Tom Grant 11 plays 0
02:33 Solving a proportion of the form (x + a)/b = c/d Solving a proportion of the form (x + a)/b = c/d	Solving a proportion of the form (x + a)/b = c/d Demonstrating why we can "cross muliply" a proportion to solve it, we then do that. math math emporium algebra proportion fraction times fractions sides denominator answer divides zeros parentheses multiplication cross sevens lcd factors thing equation videos kind proportions From Tom Grant 16 plays 0