Answer:
Fraction = 5/10 = 1/2
Decimal = 0.5
Step-by-step explanation:
The correct answer will be the first one, (-1,0). Since it gives you the points the first point will be x and the second point will be y. All you have to do is plug those points into the equation and see if it is the correct answer if not go onto the next points until you reach the correct one.
Answer:
Triangle
Step-by-step explanation:
Area of a triangle = 1/2 bh
C) x = -1
Steps:
1/4 (x - 7) = 2x (distribute 1/4 with x and -7)
1/4x - 7/4 = 2x (distributed)
1/4x - 7/4 - 2x = 0 (put all values on 1 side)
1/4 x - 2x = 7/4 (put the x values together and 7/4 on the other side. *make sure you switch the signs (+ & -) when moving the values to the other side of the equal sign)
1/4x - 8/4x = 7/4 (multiply 2x by 4 on on top and bottom. *2x written as fraction is 2x/1)
-7/4 x = 7/4 (when you subtract 1/4x with 8/4x you get -7/4)
(-7/4)x / (-7/4) = 7/4 / (-7/4) (divide both sides by -7/4 to solve for x)
X = -1
Reminders when multiplying or dividing:
2 positives make a positive
2 negatives make a positive
A positive and a negative make a negative
A negative and a positive make a negative
