Thinking and Applications Functions MCR3U Unit Test 1

Q9. The formula for converting a temperature in degrees Fahrenheit into degrees Celsius is C=5/9 (F-32)
a. Write the formula in function notation.
b. Write the inverse of the function.
c. Convert 9˚C into degree Fahrenheit.

 
Q10. You start up a business selling muffins. You can make the muffins for $0.30 each. Advertising will cost an additional $18.00.
a. Write an equation showing the cost of making and selling m muffins.
b. Find the inverse of the function.

Q11. Consider the function f(x)=5(x-4)+9. Find f(2b).

Q12. Consider the function f(x)=1/3x and g(x)=1/x^2 .
Determine f(1/12)-g(1/5)

 
Q13. Given f(x)=k(4+x), find the value of f if f^(-1) (-3)=-5

Q14. Describe the following transformation from the parent function
f(x)=5-2/((-1/2 x+3) ).
 
Q15. The function f(x)=|x| is vertically stretched by a factor of 5, is stretched horizontally by factor of 4 has a reflection in the x-axis, translated 3 units to the right. Write the equation of the transformed function.
Q16. Sketch graph of f(x)=-2√(-4x+8)+3
Find domain and range. #GCSE #SAT #EQAO #IBSLmath