Simplify
-3+(-10)+(-8)-(-32)
11
(5, 7) and (3, 6)
What is 1/2?
The graph of an equation that is a straight line is called what?
What is our slope intercept equation?
y = mx + b
The y value of a point at which a graph crosses the y-axis.
y-intercept
What is a plane?
a flat surface
-5(-2)+(-3)+8(-2)
-9
(2, 5) and (8, 1)
What is -2/3?
To graph a linear equation, you need what?
two points
What is the slope?
y = 3x - 5
m = 3
The measure of the steepness of a line
slope
What are the names of the two intersecting lines on the coordinate plane?
x axis and y axis
(-3)2+(-12)-(-2)
-1
(0, 0) and (10, 0)
zero
How many variables are in linear equation and what are they?
2, x and y
What is the y intercept?
y = -3x - 7
b = -7
In the equation of linear function: y=-4x-2, What is the y-intercept?
b = -2
Each point on the graph can be names by using two numbers, what are those two numbers called?
ordered pair
3n + -5n - 1n
-3n
(2,3) and (9,7)
What is 4/7?
Graphing a line is in what part of mathematics?
Algebra
What equation has a slope of 1/2 and a Y - intercept of -3
y = 1/2x - 3
How do you find slope on a graph?
Rise over Run?
Which axis is horizontal and which is vertical?
x-horizontal, y-vertical
-7(12 + n)
-84 - 7n
(0,10) and (5, -5)
What is -3?
A line passes through the point (5,-6), which equation passes through this point:
a) y=-5x+18
b) y=-4x+14
c) y=-2x-13
b
Given: y = -1/3x, what is m and b
m = -1/3
b = 0
What is the slope formula when we can't use a graph?
(y2-y1 ) / ( x2-x2)
The second number of an ordered pair is the distance along what axis and from what point?
y axis, origin