ceannaloves1d ceannaloves1d

02-05-2017
Mathematics

contestada

What are the x-intercepts of the quadratic function? F (x)=x^2-3x-10

Respuesta :

ghanami ghanami

07-05-2017

hello :
hello :
f(x) = x²-3x-10
the x-intercepts solutions f(x) = 0
Δ =b²-4ac a =1 b = -3 c = -10
Δ =(-3)²-4(1)(-10) =49 = 7²
x1 = (3-7)/2 x2 = (3+7)/2
the x-intercepts : 5 , -2

Answer Link

Otras preguntas

My math homwork is asking me for the word form and the expanded form for 3.4 and 2.51,and i don't understand this. we just started it today and she my teacher g

What is the outermost layer of the earth?

Which points are solutions to the linear inequality y < 0.5x + 2? Check all that apply.(–3, –2) (–2, 1)(–1, –2)(–1, 2)(1, –2)(1, 2)

Which number families does the number 1 belong to??

What interpretation of this image supports moctezumas understanding of human sacrifice

Kendra bought a pieace of fabric that was 14 feet long .lisa bought a pieace of fabric that was 3 yards long .kendra wanted to cut her fabric so that it was the

What arre the primary elements of the earths layers??

Why can't quadrilaterals have four obtuse angles?

very confused on 1-3. please help

What does this excerpt emphasize about the character of Regina?