Coordinate Plane
How many quadrants are on a coordinate plane?
IV four
(1,5)
What does the 1 represent here?
X coordinate
Linear equations can be graphed by finding and graphing at least two solutions. True or False
True
A __________ line is parallel to the y-axis
A) Vertical
B) Horizontal
A) Vertical
What is the phrase we used to find slope?
Rise over run
In a set of ordered pairs that can be plotted on the coordinate plane, which is correct: (y,x) or (x,y)?
(x,y)
(1,5)
What does the 5 represent here?
Y-Coordinate
Which ordered pair is a solution of:
6x + 3y = 18?
A. (-2, -10)
B. (-2, 10)
C. (2, 10)
B. (-2,10)
A __________ line is parallel to the x-axis
A) Vertical
B) Horizontal
B) Horizontal
The vertical change between two points is called the ____, and the horizontal change is called the ____.
The vertical change between two points is called the rise, and the horizontal change is called the run.
Which quadrant is (9, 7) located?
What is Quadrant 1
(1,5)
What does this set of numbers represent?
Coordinate, Point, Ordered Pairs
Describe the graph x=2
a vertical line at 2 on the x axis
Write an equation for a vertical line?
Any variation of x = ___
y2 - y1/x2 - x1
Where is the origin?
(0,0)
(-10,-20) is a point on the line 2x = Y. True and false?Explain how you know.
True, this can be proved by plugging in the x and y coordinates into the equation.
Describe the Graph y = -3
is a horizontal line at -3 on the y axis
On the back of your whiteboards graph the equation y = -4
A horizontal line that passes through the y axis at (0,-4)
Find the slope of a line between the points (-1, 2) and (5, 10).
m = 4/3
Which quadrant has (-,+)
Quad 2
(5,8) is a point in the line 3x - 7 = Y. True and false?Explain how you know.
True, this can also be proved by plugging in the x and y coordinates into the equation.
Evaluate each equation at x = -1.
y = -2x + 5
(-1,7)
(0,5) is a point on the line 0x + 4y = 20. What type of line would be formed by this equation?
A Horizontal Line
Find y for a line with slope 7 that passes through (-4, 1) and (-3, y).
y = 8