Answer:
This is an equation for a parabola. All parabolas are functions.
answer: function
Step-by-step explanation:
Answer:
the mean number of siblings is 8
Step-by-step explanation:
all you have to do is look at the graph.
Answer:
y = 3
Step-by-step explanation:
The 2 right triangles inside the right triangle are similar, then ratios of corresponding sides are equal, that is
=
( cross- multiply )
y² = 63 ( take the square root of both sides )
y =
= 3