Week 9 in Precalc 11

This week in math we learned how to convert quadratic functions into general form, factored form, and standard form from other forms. General form is y=a+bx+c, where c is the y-intercept. Factored form is y=(x-x1)(x-x2), where x1 and x2 are the x-intercepts. Standard form is y=a+q, where a is the stretch or compression of the […]

Week 8 in Precalc 11

This week in math we learned how to determine the properties of a quadratic function. On a graph, a quadratic function looks like a U or upside down U, it’s possible it could be a V as well. This is called a parabola shape, which means it’s symmetrical. The information we want to find out […]

Week 7 in Precalc 11

This week in math we learned about discriminants and how to determine the nature of a root. The discriminant equation is -4ac, as taken from the part of the quadratic formula under the root sign. There is some important vocabulary to know when determining the nature of a root. Distinct roots: two solutions, positive number, […]

Neuron Communication

Neurons are cells that transmit information. There are three different types of neuron structures, a motor neuron, sensory neuron, and interneuron. The structure of a neuron includes the cell body, which is the cells life support center. Dendrites, which conduct messages towards the cell body. The axon, which conducts messages away from the cell body. […]

Week 6 in Precalc 11

This week in math we learned how to solve quadratic equations using the zero product law. A quadratic equation is one that has two answers. A linear equation has one answer and a cubic equation has three. The zero product law is that if two numbers that are multiplied by each other equal zero, then […]

Week 5 in Precalc 11

This week in math we learned how to factor polynomial expressions, specifically ‘ugly’ ones using the ‘box method’. A helpful phrase to figure out if a polynomial expression is ugly or not is CDPEU; Can Divers Pee Easily Underwater. What each of these letter actual stand for mathematically are: common difference, difference of squares, pattern, […]