What is the y-intercept of this relation

See below.

Step-by-step explanation:

The y-intercept is where the graph of the relation intersects the y-axis. The x-coordinate of every point on the y-axis is zero. If you have an equation, set x to zero and solve for y. The value of y you get is the y-intercept.

answer

see attachment

explanation

the given function is

this function has y-intercept at

-4 and a slope of 2.

note that, the graph has a positive slope.

the graph that represents this function is the straight line that moves upward from left to right.

the graph touches the y-axis at -4.

the correct choice is the graph shown in the attachment.

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.