In the accompanying diagram, isosceles triangle abc has coordinates a(-4,0), b(4,0), c(0,4). find the area of abc.

The area of triangle ABC is

Step-by-step explanation:

we know that

The area of a triangle is equal to

In this problem we have

---> the length of the base b is the difference of the x-coordinates between A and B

---> the height h is the difference of the y-coordinates between C and the origin O

substitute the values in the formula

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.

according to egenuity the answer is

step-by-step explanation:

d. 344.22