You should move the variable to the same side!
best by addition/substraction:
for example:
2x+5=3x
I will "move" the 3x:
2x+5-3x=0
now you can add up the variables: -x+5=0 (x=5)
essentially you can move it to the other side, changing the sign: + to -, - to +
Hey there! I'm happy to help!
Slope intercept form is y=mx+b, where m is the slope and b is the y-intercept. We already have the slope, so our equation so far is y=3/2x+b. We just need to find the b for it to be complete.
To do this, we plug in a point on the line and solve for b. We have a point (-3,-4), so let's use it and solve.
-4=3/2(-3)+b
Undo parentheses.
-4=-9/2+b
Add 9/2 to both sides
b=1/2
Therefore, our equation is y=3/2x+1/2.
Have a wonderful day! :D
Answer:
no, that's good
Step-by-step explanation:
I'm pretty sure that's a b, so it's good
11-20=-20+11
-9=-9
Yes they are equal
Slope of AB = (5 - 2)/(7 - 4) = 3/3 = 1
slope of BC = (2 - 2)/(4 - 9) = 0
m<span>∠ABC = arctan 1 = 45°
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