Question

The black graph is the graph of

y = f(x). Choose the equation for the
red graph.
1
1
a.
b.
c.
d.
y = f(x+3)
y = f(x-3)
y + 3 = f(x)
y-3 = f(x)

Answer 1

The red graphed equation is f(x) = y + 3

Explanation:

The red graph is +3 units greater than the black graph.

Red = f(x)+3

The nomenclature is confusing, but if we say the black graph is given by y, the red graph would be y+3. This looks like c, although is is not clear what f(x) refers to.

See the attached worksheet.