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D. The slope is -2. The y-intercept is (0, 1).

Step-by-step explanation:

It is in slope- intercept form: y=mx+b

M is the slope

B is the y-intercept

Use the slope-intercept form to find the slope and y-intercept.

Slope: −2

y-intercept: (0,1)

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)

answe: it will take 4.5 hours for naomi and clair to paint an equal number of square feet

hope i

-lavira : )