SOLUTION: Given the function f(x) = -2x^2 + 4x + 3, list the y-intercept, if there is one, of the graph of f. a. -1 b. 3 c. -3 d. 5

Algebra ->  Functions -> SOLUTION: Given the function f(x) = -2x^2 + 4x + 3, list the y-intercept, if there is one, of the graph of f. a. -1 b. 3 c. -3 d. 5       Log On


   

Question 1061010: Given the function f(x) = -2x^2 + 4x + 3, list the y-intercept, if there is one, of the graph of f.
a. -1
b. 3
c. -3
d. 5
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Evaluate f%280%29.

"list the y-intercept".

If the curve of the function f touches or intersects the y-axis, the x-coordinate there will be 0. You are looking for a point or points ON the y-axis and therefore x coordinate there will be 0, or zero.

y will be some value k, when x=0.
f%280%29=k=-2%2A0%5E2%2B4%2A0%2B3
k=-0%2B0%2B3
k=3-----------this is the value f(0);
highlight%28f%280%29=3%29