raw harness
I’m not exactly sure what the question is asking me. I tried the quadratic formula to solve for y and x, but the answers i come to are radically different from the answers at the back. Please help me with a general strategy that can be applied here. I need to get ready for a test tomorrow.
Thank you.
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crystal holly
I’m not exactly sure what the question is asking me. I tried the quadratic formu...
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crystal holly
I’m not exactly sure what the question is asking me. I tried the quadratic formu...
Since you are given a table which you should fill in with values, based on those points, you should be able to draw the two equations graphically. Therefore if you did that, you should be able to look out for the intersections or common points graphically, not algebraically, like you tried.
raw harness
I’m not understanding what you’re telling me. I’ll show you what I’m talking about, maybe I might have a better grasp if I show you my process.
crystal holly
I’m not understanding what you’re telling me. I’ll show you what I’m talking abo...
I am basically saying:
What happens if you draw dots in a coordinate system and connect them with lines?
raw harness
Im plugging in the values of “y” to find x as per the equation on the left chart. The answer on the back is -47, but I can’t figure out how to get there
crystal holly
Im plugging in the values of “y” to find x as per the equation on the left chart...
This way of solving is what I mean by algebraically
Which is not what you are supposed to do.
raw harness
Okay, right then.
I guess I wasn’t really “instructed” on how to do this “graphically”.
crystal holly
Ok
Can you answer this:
What happens if you draw dots in a coordinate system and connect them with lines?
It's okay if you don't have any idea
raw harness
I don’t know how to answer this, I’m sorry.
crystal holly
No woories
so baically what happens is you get a basic picture of how the function looks like
does that makes sense
if you imagine it visually?
crystal holly
right
raw harness
How am I supposed to find the value of x then? I’m so sorry, this is totally escaping me
crystal holly
This is a very basic sketch of x²
The more point I draw the smother it gets
does that make sense?
I made "dots" and conncted them with "lines"
crystal holly
So here you got a table, a table of points to be exact, which you are supposed to fill.
So you can use the to draw a basic picture of those equations
Like I did
crystal holly
How am I supposed to find the value of x then? I’m so sorry, this is totally esc...
You are given y coordinate. So you plug in y and solve for x.
Let's do the first line together:
y = -4
x+ 2(-4)² = 4(-4) + 1
Now solve for x and you got the x coordinate at y = -4