Question

When a function is expressed in standard form(y=ax^2+bx+c) what does the a stand for

Answer 1

It is a quadratic equation.

Answer 2

a is the coefficient of x^2. So in y=2x^2+3X-5, a=2, b=3 and c=-5. That's all there is to it.

Answer 3

Having nature of the graph depending on the value of a and D

Answer 4

a stands for coefficients of x^2

Answer 5

right well im asking because im also given a graph in which i need to identify a but i dont know where on the graph a is

Answer 6

if a>0 ,D> 0 the equation has two roots and graph will be open mouthed "U" upward
if a>0 D=0 the equation has equal root at (-b/2a,-D/4a)
if a> 0 D<0 the equation has imaginary roots and nature of graph will open mouthed "U" upward and it will not touch the x axis

Answer 7

if a<0 D>0 => Graph will upside down "U" and it has two roots i.e will cut x ais at two different point

Answer 8

the graph is a parabola facing upwards with x intercept of -4,0 -2,0 and the vertex of -3,-2

Answer 9

clearly it has two distinct roots -4,-2

Answer 10

alright what is a

Answer 11

a=-3

Answer 12

A. -2
B. 1
C. 3
D. 2

Answer 13

D