What is the y-intercept of the function? f(x)=-4*2^x

The y intercept is -4

Step-by-step explanation:

F(x)=-4*2^x

The y intercept is when the x value is equal to 0

Let x =0

f(0) = -4* 2^0

f(0) = -4*1

f(0) = -4

The y intercept is -4

answer: a

step-by-step explanation:

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47