This week we were taught about reciprocals.
In this blog I will be teaching you how to draw reciprocals for a linear graph.
First step: Plot your points
Second step: figure out the x intercept
Third step: find the -1 and 1 on the y axis
Fourth step: graph the reciprocal
Fifth step: find the points
This week in Pre-Calc 11, we learned how to graph absolute values. These can be applied to both linear and quadratic functions. This task is very easy to complete.
When graphing absolute values the quatratic or linear line will never go below the x intercept.
When the parabola has a absolute value it forms a W shape.
This all happens because absolute value can never be a negative.
This week we learnt about systems of equations. A system of equations is a collection of two or more equations with a same set of unknowns. In solving a system of equations, we try to find values for each of the unknowns that will satisfy every equation in the system. The equations in the system can be linear or non-linear.
First step: Factor out the equation
Second step: Find the zeros
Last step: Test the numbers to see if your equation is true
This week we learned how to model using quadratic functions. I struggled with this question because I had to force myself to look for the opportunity to use this way of solving.
This week in pre-calc we learned how to factor using trinomials.
There are a couple steps to figuring this out, but once you have figured it out it is very simple.
- identify a,b, and c in the trinomial ax2+bx+c.
- write down all factor pairs of c.
- identify which factor pair from the previous step sums up to b.
- Substitute factor pairs into two binomials.
- Continue reading
This week in Ms burtons pre calc class we learnt how do solve using the quadratic equation.
To solve this it’s easiest to determine was terms are A,B, and C. Once these variables are determined substitute these variables for the numbers from the equation. Use bedmas to solve for X
This week we learned how to multiply radicals. Multiplying radicals is very easy. JUST DO IT.
This week in precalc I learned that when doing absolute values if a negative number is within braces it really means its a positive absolute value. We know this because it all depends on the numbers distance from 0.
This week we were taught about geometric sequences and infinite and finite series.
Converging = finite
diverging = infinite
finite = -1<r<1
infinite = r<-1 or r>1
Finite = sum
infinite= no sum