Write an algebraic expression
How do you write “The sum of twice a number and 7” as an algebraic expression?
A car is traveling 75 kilometers per hour. How many meters does the car travel in one minute?
Evaluate the Function
Find f( - 4 ) if f(x) = - 2x + 3.
Fun with fractions
If 1 is added to the numerator and denominator of a fraction, the fraction becomes 3/4. If 3 is added to the numerator and to the denominator the fraction becomes 4/5. Find the fraction.
Create a Function
A linear function is given:
a(x) = 26 - 12.4x
The function b is also linear. The equation a(x) = b(x) has exactly one solution at x = 5.
Create a possible equation for function b.
Fourth root equation
What is the value of a in the equation 81b = (a^4)(b) ?
Perimeter of a rectangle
The perimeter of a rectangle is 60 cm. Its length is 12 cm what is its width?
Input and Output
Which statement best describes the function notation f(2) = 10?
A. The output is 10 when the input is 2
B. The output is 2 when the input is 10
C. The output is f(10) when the input is 2
D. The output is f(x) when the input is 2
Dimensions of pool deck
A rectangular pool measures 5 yd by 6 yd. A concrete deck of uniform width is constructed around the pool. The deck and pool together cover an area of 72 yds². How wide is the deck?
Simplify the expression
Simplify the expression: 3x² - y - 6y² + 12y