Question

what are the x-intercepts of y=(x-2)(x+5)???

Answer 1

Explain to me what is x-intercept? From what you learnt in class.

Answer 2

y=o plug it in

Answer 3

im studying quadratic equations by factoring

Answer 4

you need to solve

x - 2 = 0

and

x + 5 = 0

for the intercepts

Answer 5

x-intercept is all points passing on the x-axis, therefore, y=0

Answer 6

So basically, to find the x-intercepts, you simply replace y by 0 and solve for what values of x, y=0 (or for what values of x, there's points laying on the x-axis.)

Answer 7

thanks campbell_st!..based off of that i got 2,0 and -5,0 for my final answer

Answer 8

Therefore we can make up two equations:
y=(x-2)(x+5)

(x-2) = 0

(x+5) = 0

and solve x for each of the equations above.

Answer 9

thanks zepp!

Answer 10

x = 2
x = -5
you let y=0 and solve for each x individually.