Slope
Find the slope given the following:
y = -5x + 9
What is -5?
What is the y-intercept?
The place on the y axis where the line begins to be graphed...
(-3, 4) (2, 7) What is the slope?
3/5
Is a vertical line.....
Linear or non linear
Function or not a function
Linear
Not a function
A line with a y-intercept of -6 which crosses through point (7,8)?
What is y = 2x - 6?
Find the slope using the following points:
(7, 10) (12, 20)
What is 2?
What is rise over run?
Slope or
Change in y / change in x
Write the equation of the line going through the point (0, 9) and m=2/3
What is y = 2/3 x + 9
Is a function where x is squared linear or non linear?
(for example y = 2x2 + 1)
What is non-linear?
A line with a slope of 1/2 crossing through point (12,-15)
What is y = 1/2x - 21?
Which is a steeper slope?
Line A y = 2x + 21
Line B Y = -3x + 5
Line B; Even though 2 is more than -3, the steepness is based on the absolute value of the number;
How do you find slope?
change in y over change in x
y2 - y1 over x2 - x1
Write an equation:
(0,5) (9,10)
What is y = 5/9 x + 5
y = 3x + 1
Linear or nonlinear?
Function or not a function?
Linear and function
A line that is rising at -288 and running at 12 that intercepts the y axis at (0, 15).
What is -24x + 15?
The slope of the following formula:
y = -21 + 8x
What is 8?
What is the Input?
The value of all x's in any given function
Write an equation for the line going through the points (-4, 7) (2, 13)
What is y = x + 11
A graph in the shape of an upright v is on the coordinate plane.
Linear or non-linear?
Function or not a function?
Nonlinear
Function
The equation for a horizontal line that crosses through point (6,-28)
What is y = -28?
What is the y coordinate when x = 10
(10, y)
y= -6/5x + 10
What is -2?
(10, -2)
How do you find b when given a point and a slope?
Use y = mx +b, and input the ordered pair (x,y) for the x and y, and use the slope for m to solve for b.
Write an equation for the line going through the points (7, -2) (9, 2)
y = 2x -16
How do you determine if a graph is a function?
What is the vertical line test?
A line that crosses through the following points:
(2, -10) and (14, -22)
What is y = -x - 8?