Answer:
Equation: [tex]f(x)=3^x[/tex]
A is correct
Step-by-step explanation:
Given: The graph of a function on x-y coordinate plane.
y-intercept: (0,1)
Graph starts from II quadrant touches x-axis at infinity.
End in I quadrant increases gradually.
This is property of exponential function.
[tex]y=ab^x[/tex]
y-intercept: (0,1)
[tex]1=a[/tex]
Passing point: (1,3)
[tex]3=b^1[/tex]
b=3
Equation of graph:
[tex]y=3^x[/tex]
Hence, The equation of given graph is [tex]y=3^x[/tex]
