Show:
Proportionality
All about Lines
Slope
Functions
Equations
100
How do you represent a proportional graph?
What is the line must pass through the origin
100
What does linear mean?
What is the graph is a line.
100
What does slope mean?
What is the steepness of a line.
100
What is a function?
What is there is exactly one output of each input. One y for each x.
100
How do you find the equation of a line from a graph?
What is pick two points, plot them in STAT and calculate the equation. OR find the slope and y intercept, then input the values in y=mx+b.
200
How can you tell if a table is proportional?
What is they have the same value of K ( constatant of proportionality)
200
What is the equation of a line?
What is y=mx+b
200
How do you calculate the slope of a line when given a graph?
What is rise/ run or Delta Y/Delta X
200
How do you know if a graph is a function?
What is it passes throught the vertical line test.
200
How do you find the equation of a line from a table?
What is use STAT Edit, STAT, Calc, LinReg on the calculator.
300
What is the difference between a proportonal and non proportional graph?
What is a proportional graph passes thorugh (0,0)
300
What does the m represent in the equation of a line?
What is slope?
300
What are other words for slope?
What is unit rate, rate of change
300
How can you tell if a mapping is a function?
What is every x value can only have one y value paired with it.
300
How do you find the equation of a line from ordered pairs?
What is you can put them in STAT or graph the points on a graph paper to determine the slope and y intercept.
400
What is the equation of a proportional graph?
What is y=kx
400
What does the b represent in the equation of a line?
What is y intercept. Where the line crosses the y axis.
400
What are other words for slope in proportional lines?
What is direct variation, constant of proportionality.
400
How can you determine if a table or ordred pair is a function?
What is you cannot repeat the x values. Every x can only have one y.
400
In word problems, how can you determine the slope and y intercept of an equation?
What is the slope usualy means rate, rate of change, unit rate, or an amount that changes. The y intercept is a number that is constant and never changes, for example a set fee, or deposit, or the money you pay to enter and amusement park.
500
Is proportional the same thing as linear? Explain.
What is no, linear means a line, proportional mean it passes through the origin.
500
If you are given two equations equal to each other, how do you find the solution? EX. 2x+3=5x
What is graph the lines on y=, then find the intersection.
500
How do you calculate the slope from a table or from ordered pairs?
What is plot them in STAT, then Calculate a LinReg. The "a" in the calculator is the slope.
500
Are linear relationships always functions? Explain.
What is no because if you have a vertical line, for example x=4, then there would be infinitly many outputs for the input 4.
500
In an equation, how do you know if the graph is increasing or decreasing?
What is if the slope is negative, then it is decreasing to the right. If the slope is positive, then the graph is increasing to the right.