Independent/Dependent
Is the relation a function?
Slope
Slope & Y intercept form
Point Slope form & Slopes of lines
100
Hector knows there is a relationship between the number of cars he washes and the time it takes him to wash those cars. Identify the independent quantity and the dependent quantity in the problem situation.
D) the number of cars washed
I) the amount of time it takes to wash each car
100
Determine whether each relationship represents a function. Explain your reasoning.
NO - explanations may vary
100
What is the slope of a horizontal line?
Zero
100
What is slope intercept form?
y=mx+b
100
Write the linear equation in point slope form:
Slope=-7 ; (4,2)
y-2 = -7(x -4)
200
Angela’s grandfather gave her all the cash he had in his pocket to buy raffle tickets that cost $1 each for her cheerleading fundraiser. Identify the independent quantity and dependent quantity in the problem situation.
D) amount of raffle tickets purchased
I) amount of money angela has
200
Determine whether each relationship represents a function. Explain your reasoning.
yes - explanations may vary
200
What is the slope of a vertical line?
Undefined
200
Write the equation in slope intercept form:
slope=0, y intercept =-5
y=-5
200
What kind of lines have the same slope?
parallel
300
Brie knows there is a relationship between the grades on her math tests and the time she spends studying for those tests. Identify the independent quantity and the dependent quantity in this problem situation
D)grade on math test
I) amount of time spent studying
300
Determine whether each relationship represents a function. Explain your reasoning.
yes explanations will vary
300
Find the slope of (4,-2) and(-1,2)
What is -4/5
300
Write the equation in slope intercept form:
slope=4 and (2,5) is on the line
y=4x-3
300
Write the equation in point slope form and in slope intercept form: (1,-4) and (3,2)
Point slope: y-2=3 (x-3) slope intercept: y=3x -7
400
David rode his bike to the park. After staying at the park for a while, he continued his ride to the grocery store. The graph shown represents this situation. Identify the independent and dependent values - include units in your answer.
D)distance from house (miles)
I) time(in min)
400
Determine whether each relationship represents a function. Explain your reasoning.
no explanations will vary
400
Find the slope of (20,3000) and (60,2000)
What is -25
400
Graph the equation: y= 4x-3
See graph
400
Write this equation in point slope form & in slope intercept form: slope=-4, (-1,-2)
Point slope form: y+2= -4(x+1) Slope intercept: y=-4x -6
500
Grissom draws different sized spheres in a notebook. He knows there is a relationship between the volume of the sphere and the length of its diameter. What is the independent quantity in the situation?
a. surface area of the sphere
b. length of the diameter
c. volume of the sphere
d. number of spheres Grissom draws
b. length of the diameter
500
Determine whether each relationship represents a function. Explain your reasoning.
no explanations will vary
500
Find the slope of the equation: 6x + 5y=30
What is 6/5
500
Write the equation in slope intercept form and graph:
3x+2y=8
y=-3/2+4
See graph
500
How do you know when you have perpendicular slopes? (Has to do with multiplying the slopes together. Try to graph and solve if needed)
When the product of the slope equals -1