The y-intercept of the function y = 2(5)x - 1 is:
a) 1
b) -1
2007-03-05 04:20:32 · 6 answers · asked by Count C 1 in Science & Mathematics ➔ Mathematics
The Y intercept is when X = 0.
The reason it's at X=0 is becuase when the Y axis is a virticle line at X = 0.
Y = 2*5*0 -1 = -1
So your answer is:
b) -1
2007-03-05 04:23:52 · answer #1 · answered by Mariko 4 · 0⤊ 0⤋
If you wrote y= 2*(5)^x -1 putting x=0 gives you y =2-1=1 (a)
2007-03-05 04:29:38 · answer #2 · answered by santmann2002 7 · 0⤊ 0⤋
-1
2007-03-05 04:29:31 · answer #3 · answered by Anonymous · 0⤊ 0⤋
the y intercept means x=0 therefore,
y=2*5*0-1
y=-1
answer is b
good luck
2007-03-05 04:23:31 · answer #4 · answered by jennifer 2 · 0⤊ 0⤋
B.
y=mx+b
"b" in the equation is -1
2007-03-05 04:23:44 · answer #5 · answered by strayinma 4 · 0⤊ 0⤋
b
2007-03-05 04:23:28 · answer #6 · answered by Agent Smith 2 · 0⤊ 0⤋