Algebra 2
Review for Quiz on Section 2.1
Name: _________________________________
Date: ____________________ Period: _______
For the quiz, you need to be able to do the following,
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Determine if a relation is a function (from a table, chart or graph)
Identify the Domain and Range of a function
Plot points on a coordinate plane
Graph equations using the Three Point Method
Graph equations using the Intercepts Method
---------------------------------------------------------------------------------------------------------------------------------------------------------------Review Questions:
1) How do you tell if a relation is a function from a chart or table?
2) How do you tell if a relation is a function from a graph?
3) The domain of a function is the _____________________________ while the range is the __________________
of the function.
4) When graphing an equation using the three points method, you need to choose at least ____________________
x value and at least ___________________________ x value. The third one is up to you.
5) When graphing an equation using the intercept form, the equation needs to be in
__________________________________.
6) To find the x-intercept, plug ZERO in for _____________________.
7) To find the y-intercept, plug ZERO in for _____________________.
8) Label the following on the coordinate plane:
Origin
Quadrants
Point (1, 4)
Point (-2, 5)
Point (4, -3)
Point (-2, -5)
Part 1: Determine if the following is a function or not. Then list the Domain and Range.
Is it a function? __________________
Domain: ___________________________
Range: _____________________________
Is it a function? __________________
Domain: ___________________________
Range: _____________________________
Is it a function? __________________
Domain: ___________________________
Range: _____________________________
Is it a function? __________________
Domain: ___________________________
Range: _____________________________
Part 2: Determine if each graph is a function.
Part 3: Graph each equation by using the three point method. Remember – choose at least 1 positive and 1 negative
point. The third point can either be positive or negative.
1) 𝑦 = 2𝑥 + 5
2) 𝑦 = −3𝑥 − 6
3) 𝑦 = 𝑥 + 3
Part 4: Graph each equation using the intercept method. Be sure the equation is in STANDARD FORM first.
1) 4𝑥 − 2𝑦 = −20
x-intercept:
Ordered Pair:
y-intercept:
Ordered Pair:
2) −4𝑦 = 3𝑥 + 24
x-intercept:
Ordered Pair:
y-intercept:
Ordered Pair:
3) 𝑥 = −5𝑦 + 10
x-intercept:
Ordered Pair:
y-intercept:
Ordered Pair: