Math 10- Week 13

This week I learned about different forms of writing slope and y-intercept equations and being able to graph them. One specific one I’m going to talk about this week is point-slope form. Point-slope form is what I would consider and many others to be the most useful form because you’ll be able to branch off of that one to get to the other forms (general and slope y-intercept). Point slope form requires knowing the slope and a pair of coordinates/ordered pairs, from there you would subtract the y value from y and insert an equal sign and on the other side put the slope and in brackets to indicate multiplication, insert the x value subtracted from x.

Math 10- Week 12

This week I learned how to calculate distance and slopes for a line on a graph. To calculate the slope of a line you would need to take the y values from each point and subtract them from each other, then do the same for the x values. Then you put the difference over the sum and that should give you the slope. To determine whether the slope is positive or negative is noticing which way the line goes, reading the graph from left to right. If the line starts higher going down it’s negative, but if the line starts lower going up, it’s positive.

Math 10- Week 11

This week I learned what function notation was. Function notation is a equation where you can input a number and the output will come out the other side. From the left side of theĀ  equal side function notation usually starts with an f which stands for the name of the function (it can start with other letters too) and then it will have an input number in brackets beside it. On the right side of the equal side is the equation and wherever there’s an x is where you plug in the input number which should result in the answer of the question.

Math 10- Week 10

This week I learned about functions. I didn’t know about functions before and how we’re able to tell if something is a function or not. A function is a “special relation” It’s when the y value/output only has one x value/input. This means if you graphed the points on a graph, there wouldn’t be a dot over top another. One test to see if a relation is a function on a graph is the vertical line test which means, if you look across the vertical line (x axis) there should NOT be one dot over another.

Math 10- Week 9

This week we talked more midterm review. I went over stuff from the beginning of math like number and exponents, and now I understand the concepts way more than before. I’m glad we got class time and review papers because it helps refresh the memory. One thing I had to make sure of was negative exponents which I almost forgot how to do, even though it wasn’t that long ago. I practiced on reciprocating then equation before solving it so it would make the question much easier.

Math 10- Week 8

This week I learned more about x and y intercepts. The x intercept is the horizontal line and y intercept is the vertical line where the line crosses over on a graph.

The hollow circle indicates the y intercept

The opaque circle indicates the x intercept

Math 10- Week 7

This week I learned more about the vocabulary for linear relations. For example,

Discrete variables= no connecting dots on a x, y axis. Counting numbers (1, 2, 3).

Continuous variables= connect the dots, used to measure. (1.5, 2.5, 3.5)

Extrapolate= extend

Interpolate= estimate

Domain/input/independent variable= x

Range/output/dependent variable= y

Ordered pairs= x, y

 

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