A 90 degree counter-clockwise rotation is being done on the black figure to get the red figure.
The algebraic rule for a 90 degree counter-clockwise rotation is 
For instance, the point C = (0,1) moves to C' = (-1,0), which is shown in the graph given and also you can use the rule above to get the same coordinates. The other points A,B and D follow the same rule.
Side note: the rotation is centered at the origin (0,0). This point is fixed.
Answer:
y=2x+6
Step-by-step explanation:
Slope of line is 2
Plug slope and first set of coords into point-slope intercept form
Answer:
I dont know if its right but I think its 50
Step-by-step explanation:
Answer: -1.17
Step-by-step explanation:
I guessed and got it right
Answer:
The answer is correct, here's why:
Step-by-step explanation:
Dr. Silva's tank holds 15
gallons of gas.
She added 11.55 gallons to her tank to fill it up.
This means she must have had 5
gallons to start with because 5 - 11.55 = 5
