Flashcards
Algebra - Linear Equations
Flashcards do conjunto (34)
- 1—
- 2—= 3 - (-7)
over
9
= 10/9
- 3Is this a linear equation? How would you figure this out and plot on a co-ordinate plane?If you plug a number into Y you will be able to use basic algebra to figure out X.
The same applies With X. Plug in a number to X you can find Y.
- 4What is an ordered pair?The ordered pair in this example is (-4,4) and (-3,3). They are (x,y) co-ordinates.
Not to be mistaken by intervals.
- 5How would you figure this out?Try putting the ordered pairs into the equation. (-4,4) replaces the "x" and "y" in the equation. If you replace them, is the equation equal?
Do not try and factor it so that it does equal something. - 6Simplest way to solve this?Get all the Ys on one side and the Xs on the other side. Simplify the equation then plug the numbers into it.
- 7Which black dot is the x intercept and which one is the y intercept?
- 8Quickest way to find the X and Y intercept?Plug 0 into Y to get the X intercept.
Plug 0 into X to get the Y intercept.
- 9You are given a table of co-ordinates. How would you work this out?Since its linear function, the change between 2 co-ordinates will be consistant through the whole function. In this case an increase of 1 for x equals a decrease of 2 for y.
- 10What is the rule for calculating slope?Change in vertical
over
Change in horizontal
Change in Y
over
Change in X - 11Calculate the slope for these two lines.Pink = 2/1 or 2 over 1
Blue = 1/1
- 12Slope = -3 What does this mean?Slope is decreasing by -3 on the Y axis(vertical) for every increase of 1 on the X axis(horizontal)
Slope = -3 = -3/1 = -3y/1x - 13—
- 14Slope is defined as:Rise over Run
Rise/Run
Vertical/Horizontal - 15—Note that he did the difference in co-ordinates two ways and they both came out the same.
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- 17You're calculating a slope and come to this. Or even 0/8. What do you do with this?This is a vertical line.
Vertical line = undefined
Horizontal line = 0
if its 8/0 (y/x) its a vertical line, you can go 8 up but cant go anywhere across.
if its 0/8 (y/x) its a horizontal line, you can go 8 across but cant go anywhere vertical.
- 18Slope can be defined in 4 different expressions, name these expressions.Slope can be defined as the variable "m"
Slope = m
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- 22Y = 2x + 3 What is this called in relation to linear equations?A two variable linear equation.
It has 2 variables, x and y. - 23What is a coefficient?a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g. 4 in 4x y).
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- 26What is the M and the b for?Y = Mx + b
The M is the slope.
The b is the Y intercept.
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Informações
- Descrição
- Maths FlashCards sobre Algebra - Linear Equations, criado por Reilly Fox em 31-10-2018.
- Criado por
- Reilly Fox · out 2018
- Atualizado
- 7 nov 2018
- Visualizações
- 2
- Avaliação