△abc has vertices a(−6,5), b(−2,5), and c(−6,0).
what is the area of △abc?
10 units2
9 units2
14 units2
20 units2

The answer to your question is 20 units²

Step-by-step explanation:

Data

A (-6, 5)

B (-2, 5)

C (-6, 0)

Process

1.- Solve this problem using matrix

       |  -6   5|       Cross multiplication             Simplify                          Result

A =  | -2    5 |   = | -30 + 0 - 30 + 0 + 30 + 10 |   = | 40 - 60 |  = | -20 |  = 20 units²

       | -6    0|

       | -6    5|

add an image

step-by-step explanation:

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?