Question

Find the x-intercept of y=x^2+5x-24

Answer 1

do you know what mean x intercept ?

Answer 2

Yes I do, I just don't know how to find it

Answer 3

this is a quadratic equation - yes ?

Answer 4

@Allison do you know this ?

A quadratic function is one of general form:
y
=
a
x
2
+
b
x
+
c

where a, b and c are real numbers.

This function can be plotted giving a PARABOLA (a curve in the shape of an upward or downward U)

To find the x intercepts you must put y=0; in this way you fix at zero the coordinate y of the points you are seeking.
You are left with finding the coordinate x of the points.
If y=0 you are left with:
0=ax^2+bx+c
which is a second degree equation.
By solving this equation you'll find two values of x (x1 and x2) that together with y=0 will give you the intercepts:
intercept 1: (x1 , 0)
intercept 2: (x2 , 0)

Answer 5

there wan being y = ax^2 +bx +c

Answer 6

hope helped

Answer 7

Aha, gotcha, thank you J! <3

Answer 8

with my pleasure

bye bye