Answer:
Step-by-step explanation:
Srry
Answer:
16(x-2)(x+2)
Step-by-step explanation:
8x + 3y = 20.50
-
4x+5y=22.50
=
4x-2y=-2, so you have to divide each number by 2, then
2x-y=-1, so
-y=-1-2x /-1, y=1+2x, then replace it with one original equation like the first one for instance:
8x+3(1+2x)=20.50, then
8x+3+6x=20.50, then
14x=20.50-3
14x=17.5
x=1.25, then solve y:\
y=1+2*(1.25)
y=1+2.5
y=3.5,
So answer is x=1.25, and y=3.5
F(x) means y
so <span>f(x)→ ∞ as x→ -∞ and f(x) →∞ as x→∞ means
as x goes to the left </span><span>y goes up infinitely
as x goes the the right, y goes up intinitely
that would be the 4th graph
the parabola opening up </span>
If youmean by obtuse or acute or right...i believe its a Acute angle
