Solve the system of equations using elimination.

15q – 4r = 62
5q + 8r = 86

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)

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step-by-step explanation:

oiluiylkyuk4515kt

u65ku45kuyfr

okey so the slope is -3/5 and the y -intercept is 7/5

hope this if needed hmu