The triangle shown below has an area of 10 units2.
Find x.
7
4
x
units

Step-by-step explanation:

area of a triangle = 1/2 base * height

where area = 10 units²

        height = x units

          base = 4

plugin values into the formula:

10 = 1/2 * 4 * x

x = 10 (2)

        4

x = 5 units

answer: b.

step-by-step explanation:

the y coordinate for point b is 0, and answer b is the only one with that y coordinate.