Month: May 2017

This week I learned the difference between independent variables and dependant variables.

Dependent Variables:

Dependent variables are variables that depend on the independent variables.  In all sense, when the independent variables change, so do the dependent variables at the same rate as the independent variable.

 

Independent Variables:

Independent variables stay consistent and are generally things that are being tested on.

 

This week, we were reviewing for the mid-term.  I had difficulty with the measurement unit, so I made sure I reviewed a lot of that content.  I had a lot of trouble in the past with Pythagorean Theorem, but in my studies, I actually figured out how to do it.

Step 1: Write out the formula.  This helps you control your work and show the person correcting it what exactly you’re doing.

a2 + b2 = c2

Step 2: Punch in the numbers.

52 + 22 = c2

Step 3: Solve the exponents.

25 + 4 = c2

Step 4: Add the two numbers together.

29 = c2

Step 5: Find the square root of the number.

5.4 = c2

Step 6: And you’re done!  Side C is equal to 5.4 cm (or whatever unit)

Step 1: See the relationship between the output, or y axis.  In this example, the numbers go up by 3 each time.

Step 2: Take the number that they go up by (in this case it’s three), and incorporate it with the x axis, so it makes 3x.  That’s the first part of the equation.

Step 3: Figure out the rest of the equation by replacing the x with the first number on the x axis.  This might look like 3(1), which is three.  To figure out the rest of the equation, figure out how the product can reach the number across from it on the y axis.  In this example, it’s 6.  So you would have to add three.

Step 4: To prove your point, try it with another example on the list.

3x + 3

3(3) + 3

= 9 + 3 = 12