Fine the slope of the line that passes through this pair of points : (2,4) (-5, 10)
What is -6/7
100
Is the function y=60/x a quadratic function. What does the graph look like?
yes, What is a hyperbola
200
rise/run
What is the slope
200
Suppose peaches cost .99 cents per pound. Write a function rule to describe the relationship between the total cost and the number of pounds of peaches you buy
What is C(p)= .99p
200
Evaluate this expression for v= 7, -5(15-2v)
What is -5
200
Find the slope of the line that passes through this pair of points: (0,0) (6,0)
What is 0
200
When would the parabola be facing upward like a U ?
When the function is positive
300
Data that involves a count of numbers. On a graph, the points are connected with a dotted line.
What is Discrete Data
300
A rate for internet access is $15 per month plus .25cents per hour of use. Write a function rule that shows how the monthly bill depends upon the number of hours used.
What is y=15 + .25x
300
f(x)= 40-2x : What is f(12) and f(-12)?
What is 16 and 64
300
If a line on the graph is vertical, or 0 is in the denominator when you calculate the slope, the slope is ________.
What is undefined
300
When would a parabola be facing downwards like an upside down U ?
When the function is negative
400
Data where numbers between any two values have meaning. Ex: Measurements of height, length, or weight.
What is Continuous Data
400
What is the difference between a linear function and a quadratic function?
A quadratic function has an x^2
400
What does the m and b variable in y=mx+b represent?
What is slope and y intercept
400
When finding the slope, you can make a ________ to help you find the coordinates.
What is a table
400
Where does the parabola cross the y intercept in this equation? y=x^2+5
What is 5
500
A quadratic function that is a U-shaped curve
What is a parabola
500
Mrs. Savin receives a weekly base salary of $500 , plus a commission of $1,200 on each car that she sells. Write a function rule relating her total weekly pay p to cars she sells c.
What is p= 1,200c + 500
500
An as in the newspaper costs $52 plus $2.50 for each line of that ad. What is the cost in dollars of placing a 7-line ad?
What is $69.50
500
Describe in words how you can find the slope if given a graph .
What is you can find two points on the graph, do the equation y2-y1 over x2-x1 or find rise/run on graph.
500
Does the point (2,2) lie on the graph of the function f(x)= x^2 - x ?