Question

Find the y-intercept.

(2x + 1)(x + 7).
(x + 3)(x + 4)
y =
([?],
all three would be pretty nice

Answer 1

`(0,(7)/(12))`

Explanation:

In order to find the y-intercept of an equation, simply plug in 0 for x, as that's where the y-axis is.

`((2(0)+1)(0+7))/(((0)+3)((0)+4))`

Simplify:

`(7)/((3)(4))=(7)/(14)`

Therefore, the y-intercept for the equation is:

`(7)/(14)`

Answer 2

(0, 7/12)

Explanation:

to find the y intercept we equate x to 0.

hence,

f(0) = 7/12

the coordinate is (0, 7/12)