To find the value of y for the given value of x, just replace the x in the equation with 9, which is the given value of x.
y = 1 - 2x
Replace x with 9
y = 1 - 2(9)
2 times 9 is 18
y = 1 - 18
Simplify
y = - 17
That's your answer.
Have an awesome day! :)
Answer:
(-3, 13)
Step-by-step explanation:
Coordinate of A is (7,5)
4 units to the left means (7-4, 5) --> (3,5)
8 units up means (3, 5+8) --> (3,13)
Reflected across the y-axis means that the sign of whatever x coordinate you have now will be reversed.
So (-3,13)
You use the formula y=mx+b, therefore you have to isolate the y
First you subtract 3x to both sides.
3x - 5y = -35
-3x -3x
Then it would be
-5y = -3x -35
Then you divide -5 on both sides to isolate the y
-5y = -3x -35
/-5 /-5 /-5
Two negatives cancel out and make a positive so it would be
Y = 3/5x + 7
(:
20 gallons
5 times 4 is 20
Hope this helps and have a great day!