Question

PLS help i really dont get this, lesson didnt help. Which function has the greatest y-intercept?

Answer 1

So, y intercepts happen when \(x=0\) this is because if you look, when x is 0 the graph will be somewhere on the y axis.
for these examples;
\[f(0)=-3(0)-5\\h(0)=2\cos(2(0)-\pi)+4\]
for g(0) we can look at the graph and see it intercepts at 3
So, evaluate the above, and see which one gives the highest value

Answer 2

y= mx + b
Where b, the number by itself, is the y-intercept, so the largest number on the end is the largest y-intercept

Answer 3

what @DarronW said is true of linear equations like \(f(x)\) in this problem, but not necessarily to everything

Answer 4

My example was a linear formula, feel free to give an example where the y-intercept is ever different from a lone number in function notation.

Answer 5

okay, so wait solve both the f(0) and h(o) for highest value?

Answer 6

right, and i said g(0) wrong, it is actually -3 not 3

Answer 7

@DarronW \(h(x)\) in this example would be something where the trailing addition is not the intercept

Answer 8

When i solved with the x=0 i got f(0)=-5 and h(0)= -5.996
Did I follow that right?

Answer 9

you did h(0) incorrectly;
\[h(0)=2\cos(-\pi)+4=2(-1)+4\\h(0)=2\]

Answer 10

okay so from there would the answer be f(x)?

Answer 11

No, look again:
\[f(0)=-5\\g(0)=-3\\h(0)=2\]

Answer 12

oh! So h(0) would be right because its greater right?

Answer 13

right!

Answer 14

omg! thnx

Answer 15

no problem :)