MEDAL WILL BE AWARDED AND FAN! Determine the type of boundary line and shading for the graph of the inequality 5x + y greater than or equal to -10. Dashed line with shading on the side that includes the origin Solid line with shading on the side that does not include the origin Dashed line with shading on the side that does not include the origin Solid line with shading on the side that includes the origin
First off, you know that it is greater than OR EQUAL TO. Does this mean it is a dashed or solid line?
um, solid
Correct, so can already rule out two options. Now you have\[5x +y \ge-10\]
ok
What you want to do is isolate y. To do this, subtract 5x from both sides.
ok
wouldn't we just have 5xy now?
Can you show me what you have after you subtract 5x from both sides?
No.
i dont get it
i know 5x - 5x is zero so thats gone
\[y \ge-10-5x\] this is what you have now.
yes
This is also\[y \ge-5x-10\] which is slope intercept form.
oh, ok i see
You shade above the line because the sign is a greater than. Since you shade above the line, this includes the origin. Does this help?
so its b?
no no no
d sorry
Yes! :D
thank you so much dude, im gonna give you a medal and fan you
Thank u! :)
im going to close this question now
K. Anytime you need help with something else, just message me. :)
ok
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