What form do we use to graph a linear equation?
the slope-intercept form y = mx + b
What is the y intercept in the equation y=2x-4?
Must give a coordinate.
(0,-4)
What is the y intercept in the equation y=2x-4?
Must give a coordinate.
(2,0)
What are the coordinates for and x intercept?
(x,0)
When graphing linear equations, where do we begin?
We begin at the y-intercept.
In the following linear equation, what is the y-intercept? y = -3/4x
0
Find the x intercept of the equation 4x+5y=24
(6,0)
Write an equation for a vertical line through the point (-3, 3)
x = -3
What equation do you use to calculate slope from two points?
(y2-y1)/(x2-x1)
When graphing the equation y=1/3x+4, we start at the point (0,4). Then, we can either go up one and three to the right or ..... ?
Down one and three to the left.
Rewrite this equation in slope-intercept form. x + y = -12
y = -x - 12
Find the y intercept of the equation 4x+5y=24. Give your answer as a coordinate in decimal form.
(0,4.8)
Write an equation for a line with the following slope and points.
m = 2/3 and (0, -2), (3, 0)
y = 2/3x - 2
Find the slope of the line that includes the following points. (4, -5) (-4, 5). *Must give the most simplified answer.
-10/8 which simplifies to -5/4
Draw a rough sketch of the line y = -2, What is the slope?
Horizontal line through (0,2)
Slope - m=0
Rewrite the following equation in slope-intercept form. 3x + 6y = -18
y = -1/2x - 3
Find the missing coordinate
(1,-2), (-5,y) m=-1/3
y=0
Find the slope of the line that goes through (15, -10) and (5, 10)
slope = -2
Find the slope of the line that includes the following points. (-12, -9) (-3, -3).
*Must give the most simplified answer.
-6/-9 = 6/9 = 2/3
Draw a rough sketch of the line x = 4 , What is the slope?
Vertical line through (4,0)
Slope - m= undefined
Rewrite the following equation in slope-intercept form. 3.5x - 7y = -21
y = 0.5x - 3 or y = 1/2x - 3
Find the missing coordinate
(4,3) (x,6) m=3
x=5
The amount y(in dollars) of money you have left after playing x games at a carnival is y = -0.75x + 10. How much money do you have after playing eight games?
y = -0.75(8) + 10 y = -6 + 10 y = 4 $4 dollars left after playing 8 games.