Please help ASAP Evaluate the expression 64 ÷ x − 4, when x = 8
1 answer:
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2. The graph moves up 4 units. (See the blue line in the graph below.)
The domain is unchanged. (The function is still defined for all x.)
The range went from [0, ∞) to [4, ∞), since 4 was added to the minimum value.
Answer:
d
Step-by-step explanation:
Given y is directly proportional to x² then the equation relating them is
y = kx² ← k is the constant of proportion
To find k use the condition y = when x =
, then
= k(
)² =
k ( multiply both sides by 8 )
1 = 2k ( divide both sides by 2 )
k =
y = x² ← equation of proportion
When y = , then
=
x² ( multiply both sides by 2 )
9 = x² ( take the square root of both sides )
x = ± = ± 3
with positive value x = 3 → d