hkelbel's channel

hkelbel commented 1 month ago

6:58 Add to

Using a Table to Graph a Linear Equation

One example of using a table to graph a linear equation

6,910 views

hkelbel said:

@Gergyboy101 Sorry I didn't get to this sooner! Since it has been a month, I'm guessing you are onto something else in your math class. However, if you are still wondering about the equation, please check out my post above. Thanks!

• 6:58 Add to

  Using a Table to Graph a Linear Equation

  One example of using a table to graph a linear equation

  6,910 views

  hkelbel said:

  @classymrz Hi, for a line in standard form, I would find just two points (the x and y-intercepts) to graph the line. Step1: plug 0 in for y: 2(0)+10x=10. Step2: solve for x: 2(0)+10x=10 -> 0+10x=10 -> 10x=10 -> divide both sides by 10 to get: x=1. So the first point would be x=1,y=0 or (1,0). The...

• 7:30 Add to

  Using a Table to Graph a Line y=mx

  graph a linear equation by using a table

  1,870 views

  hkelbel said:

  @shichiren07 Hi, I picked -6, -3, 0, 3, and 6 because I knew that when we multiply by the fraction -2/3 and I didn't want to worry about trying to graph fractions or decimals. When we graph equations using a table like this, we can pick any values for x that we want to. For example, if I pick...

• 9:06 Add to

  Graphing Linear Equations

  graphing linear equations using the slope-intercept form

  25,919 views

  hkelbel said:

  @Jonsgirl4everr - Hi, thanks for watching! First, I would re-write the equation y-x=4 into slope-int. form. So, we have to move the "x" to the other side by canceling it out (doing the opposite): y-x+x = 4+x -> y = x+4. Now you have two equations with a slope of 1/1 and y-intercepts of +2 ...

• 9:06 Add to

  Graphing Linear Equations

  graphing linear equations using the slope-intercept form

  25,919 views

  hkelbel said:

  Yep! The variable b stands for the place on the y-axis that the line crosses, so writing it as a point (0,4) is correct.

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hkelbel commented 9 months ago

8:16 Add to

Solving Proportions

3 examples on solving proportions

16,123 views

hkelbel said:

@MrButtersbutter

The ratio 20:1 means that there are 20 meters for every 1 cm. So, we are comparing meters and centimeters. That means I would set my proportions up as ... meters/ cm = meters/cm (make sure you keep the 20:1 in the same ratio) ... so it would be ... 20 meters / 1 cm = 452 met...

• 8:26 Add to

  Solving One-Step Equations

  4 examples of solving equations

  12,704 views

  hkelbel said:

  @DuckVader64

  Another way to read that would be 2/7 times x equals -4. The opposite of multiplying by a fraction is to multiply by it's reciprocal (the fraction flipped over). So, we would multiply both sides by 7/2 ... (7/2)(2/7)x = -4(7/2) ... 1x = -28/2 ... x = -14

  I hope that helps.

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