caitlin03 caitlin03

18-02-2017
Mathematics

contestada

If y=x^2+2x
Find the value of y when x=-1

Respuesta :

SuperLegend SuperLegend

18-02-2017

y=x^2+2x
Substitute -1 for x
y=-1^2+2(-1)
Square -1
y=1+2(-1)
Multiply 2 by -1
y=1+ (-2)
Subtract 2 from 1
Final Answer: y=-1

Answer Link

Otras preguntas

write the following decimals as fractions. Give your answer in its simplest form. a) 0.6= b) 0.025

when an atom of lithium loses an electron, the atom becomes a 1. negative ion with a radius smaller than the radius of the atom 2. negative ion with a radius l

how do you know when to write zero in a quotient

Each box of information below describes one part of an experiment. Read the information, then write which stage of scientific methodology is being described. W

There are two major branches of Islam. • name the two branches of Islam • explaine why Islam split into two branches • explaine the relationship between the two

A controversial case which declares that burning the American flag is a form of symbolic speech covered by the 1st Amendment is the A. United States v. Nixon ca

what was Hollywood and society's response to McCarthyism

which of the following represents a polygon that is two times the size of the original polygon? A: (x' , y') = (0.2x,0.2y) B: (x' , y') = (1/2x, 1/2y) <-- F

Summarize the steps of sexual reproduction and explain how it increases genetic diversity

what is the answer to 978 -(6x8) + 99 =

RELAXING NOICE