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Grade 10 Functions and Relations CCSS: HSF-IF.B.4
Given the domain $-pi < x < pi$, at what interval(s) is the function $f(x)=2cos(x)$ negative?
1. $-3/4pi < x < -1/4pi, 1/4pi < x < 3/4pi$
2. $-pi < x < 0$
3. $-1/2pi < x < 1/2 pi$
4. $-pi < x <-1/2pi,1/2pi< x< pi$
Grade 10 Functions and Relations CCSS: HSF-IF.A.1
The amount of money you spend on coffees every month can be calculated as a function of the number of drinks you order every month. What are the independent and dependent variables in this function?
1. The independent variable and dependent variable cannot be determined from the given situation.
2. The independent variable is the amount of money you spend on coffee per month and the dependent variable is the number of drinks you order per month.
3. The independent variable is the number of drinks you order per month and the dependent variable is the amount of money you spend on coffee per month.
4. The independent variable is the number of drinks you order every month and the dependent variable is the number of months.
What is the name of this parent function?
1. constant
2. linear
4. cubic
Grade 10 Functions and Relations CCSS: HSF-IF.B.4
Given the domain $-pi < x < pi$, at what interval(s) is the function $f(x)=sinx$ negative?
1. $0 < x < pi$
2. $-pi < x < 0$
3. $-1/2pi < x < 1/2 pi$
4. $-pi < x <-1/2pi,1/2pi< x< pi$
Grade 10 Functions and Relations CCSS: HSF-IF.B.4
Given the domain $-pi < x < pi$, at what interval(s) is the function $f(x)=cos(2x)$ negative?
1. $-3/4pi < x < -1/4pi, 1/4pi < x < 3/4pi$
2. $-pi < x < 0,0 < x < pi$
3. $-1/2pi < x < 1/2 pi$
4. $-1/2pi < x <0,1/2pi< x< pi$
Grade 10 Functions and Relations CCSS: HSF-IF.A.1
Which of these equations is not a function?
1. $y=x^2$
2. $x=3$
3. $y=4x+3$
4. $f(y)=4y^2 -2$
Grade 10 Functions and Relations CCSS: HSF-IF.A.3
The third and fourth and fifth numbers in a sequence are $16, 22, 28...$. Which function describes the sequence?
1. $f(n)=6n+16$
2. $f(n)=6n-2$
3. $f(x)=3x+12$
4. $f(x)=12x+6$
Grade 10 Functions and Relations CCSS: HSF-IF.A.3
Which function describes the sequence $3, 7, 11...$?
1. $f(n)=4n-1$
2. $f(n)=3+2n$
3. $f(x)=2n-3$
4. $f(n)=4x-1$