Can you check these answers and make sure I'm right? Thank you!
Write the equation of the line in slope-intercept form that passes through the points (-2, 6) and (-1, 4).
y = -2x + 5
y = 2x - 3
y = 2x + 6
y = -2x + 2
I chose A.
Evaluate: -3 - (-6)
-3
-18
-9
3
I chose D.
If f(x) = -2x + 1, find f(-6).
12
13
-11
-7
I chose A.
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OpenStudy (anonymous):
I suck at math so I just want to be sure.
hartnn (hartnn):
1st one isn't correct...
OpenStudy (johnweldon1993):
recheck numbers 1 and 3
OpenStudy (anonymous):
Okay Thank you
hartnn (hartnn):
for 1st, you got slope of line as -2, right ??
then you can plug in any point in, y= (-2)x+c
say, y=6, x=-2 and find c
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hartnn (hartnn):
for 3rd, just plug in x=-6 in f(x) to get f(-6)
-2(-6)+1=... ?
OpenStudy (anonymous):
Would the first one be D?
hartnn (hartnn):
yes!
OpenStudy (anonymous):
Yay Awesome!
hartnn (hartnn):
and 3rd ?
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