KatieBerman KatieBerman

04-06-2015
Mathematics

contestada

F(x)=-x^2+8x+9
What is the vertex and it the vertex the minimum or maximum??

Respuesta :

Panoyin Panoyin

04-06-2015

X - Vertex
-8 = -8 = 4
2(-1) -2

Y - Vertex
f(x) = -x² + 8x + 9
f(4) = -(4)² + 8(-4) + 9
f(4) = -(16) - 32 + 9
f(4) = -16 - 23
f(4) = -39

(x, f(x)) = (x, y) = (4, -39)

Answer Link

Otras preguntas

Given: ABCD ∥gram BK ⊥ AD , AB = 6, AK = 3 Find: m∠A, m∠B, m∠C, m∠D

Histograms: the maths GCSE test scores of 280 students are shown in the histogram below

The segments shown below could form a triangle.oO A. TrueCB Fase

solve for x in the equation 99-x/4=2

When neurotransmitter binds a(n) ___ receptor, the receptor activates chemicals inside the neuron that ultimately trigger the opening of ion channels in other p

A dental X‑ray typically affects 175 g of tissue and delivers about 4.05 μJ of energy using X‑rays that have wavelengths of 0.0235 nm. What is the energy in ele

explain the statement "atomic weight or molecular weight is a relative weight"

Simplify this expression. 25(13+V2) 265 + 2/10 0 285+2√7 2665 + 2/10 26/5 + 2/10

3/4 of a worker's earning is #630. Find his total earning for the month

If triangle DEF has a 90° angle at vertex E, which statements are true? Select two options. Triangle DEF is an obtuse triangle. The angle at vertex D is acute.