Functions
Representations of Functions
Linear Functions
Nonlinear Functions
Extra
100
Is the relation a function? (3,4) (-2, 6) (5, 5) (-4, 6)
What is yes
100
Write the following linear function using words. Remember to use the words input and output. " Y = 10X"
What is The output is 10 times the input
100
Which answer choice is a linear function: A. y = x^2 + 4 B. y = 7x + 5 C. 4y + 1 = x^2 D. 3y= the square root of x
What is B. y = 7x + 5
100
Which answer is a nonlinear function? A. y = -3x + 6 B. y = -5 + 0.4x C. y = 2x -8 D. y = x^2 -6
What is D. y = x^2 -6
100
Line m passes through point (-1, 1) and has a slope of 4/7. What is the equation of the line in standard form?
What is 4x - 7y = -11
200
If a relation is a function, what does that mean about its inputs?
What is the inputs should not repeat.
200
Evaluate the function rule for the given x value: y = 7-3x if x = 0
What is 7
200
Write a linear function for the following points. (3,3) (6,4) (9,5) (15,7)
What is y = 1/3 x + 2
200
Does a nonlinear function have a rate of change?
What is no
200
What is the equation of the line with a slope of 1.5 that passes through the point (-8, -9)
What is y = 1.5x + 3
300
In (x,y) which is the input and which is the output?
What is x is the input and y is the output
300
Express the following function using words? Be sure to use the words input and output. " Y = 7 - 3x"
What is the output is 7 take away three times the inoput
300
Mr. Gilmore sells furniture. He earned $210 for selling 3 sofas He earned $570 for selling 11 sofas. Represent his earnings with a linear function.
What is y = 45x + 75
300
If a function is nonlinear, will its graph be a line?
What is no
300
Write a linear function of a line that has a slope 2 and passes through the point (-1, -1).
What is y + 1 = 2(x+ 1)
400
Which of the four numbers will make this relation function (1, 2) (-1, 0) (3, 5) (? , 0) A. 1 B. 3 C. 0 D. -1
What is C. 0
400
Express the following linear function as an equation: The output is four less than one-half the input
What is y = 1/2 x - 4
400
Using the points (2,3), (6,7), and (8,9) write a linear function.
What is y = x + 1
400
Is the function y = x^3 -6 nonlinear? and Why
What is no, the exponent of x is other than 1
400
Kevin earns $250 per week, plus a 5% commission on all the furniture he sells x. Write an equation of his monthly earnings.
What is y = 0.05x + 250
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