Answer:
12 units
Explanation:
**
Find the distance between the points (-5, 4) and (7,4).
**
Use the distance formula: x^2 + y^2 = d^2
Where, d=distance, x=x2-x1, and y=y2-y1
How to find x1, x2, y1, and y2:
(-5, 4), (7,4) ==> (x1=-5, y1=4), (x2=7, y2=4) <== (x1, y1), (x2, y2)
y2=4, y1=4
y=4-4 ==> plugin 4 for y2 and y1 in the equation y=y2-y1
y=0
x2=7, x1=-5
x=7 - (-5) ==> plugin 7 for y2 and -5 for y1
x=7+5 ==> subtracting by a negative number is equivalent to adding by a
positive number
x=12
Now plugin x and y into the distance formula:
(12)^2 + (0)^2 = d^2
12^2 + 0 = d^2
12^2 = d^2
d = 12 ==> distance is 12 units