New Zealand
Level 7 - NCEA Level 2
Find the Equation of a Square Root Function
Interactive practice questions
The square root function that has been graphed has an equation of the form $y=a\sqrt{x}$y=a√x.
Loading Graph...
a
Which of the following are points that lie on the graphed function? Select the two that apply.
$\left(1,2\right)$(1,2)
A
$\left(3,3\right)$(3,3)
B
$\left(4,4\right)$(4,4)
C
$\left(2,3\right)$(2,3)
D
$\left(4,8\right)$(4,8)
E
b
Solve for the value of $a$a.
c
Hence state the equation of the function.
Easy
1min
By comparing it to the function $y=\sqrt{x}$y=√x, state the equation of the square root function that has been graphed.
Easy
1min
By considering the domain of the function that has been graphed, state its equation.
Easy
< 1min
The diagram shows the graph of the square root function $f\left(x\right)$f(x).
Easy
1min
Sign up to access Practice Questions
Get full access to our content with a Mathspace account