Rate of change
Whats an example of rate of change in our daily life from the Unit 3 notes?
Driving in a car, Cooking, and Heart rate.
What is slope intercept form?
Y=mx+b
What are parallel lines?
Parallel Lines are two lines that will never intersect.
What are perpendicular lines?
Perpendicular lines are two lines that intersect to form a right angle.
How do you write a function notation?
f(x)=mx+b
What do you get when you use the AROC formula.
Slope.
What is point slope form?
Y-Y1=M(X-X1)
Using Y=mx+b how could you indicate that the lines are parallel.
If the two equations have the same slope they would be parallel.
How do you create a perpendicular slope ?
You have to do the opposite , and the reciprocal.
When the question asks find x when f(x)= -13 what would you do ?
You would need to substitute the -13 for the whole f(x).
What is the equation for AROC?
(y2-y1)/(x2-x1)
Is this equation written in slope form?
Y=2/3x+6?
Yes
Line A's slope is 3
Line B passes through these two points (1,2) (3,X)
what would you have to plug in for X for these two lines to be parallel.
X= 8
What is the perpendicular line for -3/4?
4/3
What is the most basic linear function from all linear functions and what is the equation?.From the unit 3 notes.
The most basic linear function is called parent linear function and the equation is f(x)=x.
What symbol do we use to symbolize change?
Delta Symbol.
How do you find the slope on a graph given two points?
Using the points on the graph to determine the slope by seeing the rise and the run from the distance of the two points.
(3,9) (4,2) create a slope parallel to this line.
Parallel slope to these points are -7.
Line 1; (-5,0) (-3,-2)
Line 2; (-2,2),( 0,4)
Are these lines parallel or perpendicular, and what is the slope.
These two lines are perpendicular, with the slope for the first line= -1, and the second line =1.
F(x) =-3x+2
find x when f(x)= -13
5=x
What is the difference between using brackets or parentheses to denote an interval.
Using brackets indicate that all values between the two numbers are included.
Using parentheses indicate that all values between the two numbers are not included.
Whats the difference between the y-intercept , and x-intercept, and how can you tell the difference on the graph
x-intercepts =(_,0); The x intercept is horizontal on the x-axis
y-intercept=(0,_); The y intercept is vertical on the y axis.
Line 1; (-1,2), (2,3)
Line 2; (0,0), (3,1)
Are these two lines parallel or perpendicular?
These two lines are parallel with the slope of 1/3.
Line 1; (-5,0), (-3,-2)
Line 2; (-2,2), (0,4)
Are these two lines parallel or perpendicular?
These two lines are perpendicular with a slope of -1, and 1
h(x) = 5x - 3
find x when h(x)= -18
-3=x