Which of the following is the function representing the graph below? graph begins in the second quadrant near the line y equals 3 and increases slowly while crossing the ordered pair 0, 4. When the graph enters the first quadrant, it begins to increase quickly throughout the graph.
options are A. f(x)=4^x B. f(x)=4^x-3 c. f(x)=4^x+3 d. f(x)=4^(x+3)
Hint: when x = 0 , 4^x = 1
- also the graph intersects the x axis at y = 4
so would it be A?
* correction - intersects the y-axis at y = 4
if it wers A what would be the value of f(x) (that is y) when x = 0
f(x) = 4^0 = ?
i have no clue...
as i said in my first post 4^0 = 1 anything to the power 0 = 1 if a was correct then the graph would pass through f(x) = 1 so it cant be A
- that is a would pass through (0,1) - but it passes through f(x) at the point (0,4) so the whole graph has risen how many units from (0,1)?
okay so would it be c?
Yes + 3 rises it up 3 units
c is correct
thank you so much
yw
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