Question

PLEASE HELP ME
Where does the graph of y=2x^2 - 9x -5 cross the x-axis?

Answer 1

crosses the \(x\) axis where
\[2x^2-9x-5=0\] can you solve it?

Answer 2

not too bad because this one factors as \((x-5)(2x+1)=0\)

Answer 3

@satellite73 i need like two points

Answer 4

yes you do

Answer 5

solve \(x-5=0\) and solve \(2x+1=0\)

Answer 6

These are the answer choices
-1/2 ,0 and 5,0
1/2,0 and -5,0
-5/2,0 and 1,0
5/2,0 and -1,0

Answer 7

Ohhhhh ok

Answer 8

if it is on the \(x\) axis the second coordinate is surely 0
question is what is the first coordinate
i am sure you can solve \(x-5=0\) right?

Answer 9

Ok so one of the xs is 5

Answer 10

yes
\((5,0)\) is where it crosses \(x\) axis
also \((-\frac{1}{2},0)\)

Answer 11

i think it might have been confusing because they wanted a coordinate rather than just the \(x\) value

Answer 12

Thank u so much @satellite73