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Question

anonymous · Answer

Do you know how to find slope? Gotta do that first.

anonymous · Answer

no

anonymous · Answer

i got -3 as my slope and my equation is the 3rd one. simplifying, i get y=-3(x-3)

anonymous · Answer

Slope is "rise over run" = change in y ÷ change in x.

anonymous · Answer

so its a?

anonymous · Answer

Point-slope form is just a rearranging of the slope formula, viz.
$$m=\frac{y_2-y_1}{x_2-x_1} \rightarrow y-y_1=m(x-x_1)$$

anonymous · Answer

Identify your x1, y1, x2, and y2, and plug all that junk in.

anonymous · Answer

nope, c!...try cliffsedge's slope formula and fix into the general formula y-y1=m(x-x1) where x1 and y1 colud either be (-2,15) or (9,-18)

anonymous · Answer

@niikofi12  can you help me with another?

anonymous · Answer

sure

anonymous · Answer

What is an equation of the line, in point-slope form, that passes through the given point and has the given slope?

point: (8, –8); slope: 3

    y – 8 = 3 (x + 8)
    y + 8 = 3 (x + 8)
    y – 8 = 3 (x – 8)
    y + 8 = 3 (x – 8)

anonymous · Answer

would it be d?

anonymous · Answer

using y-y1=m(x-x1) where x1=8, y1=-8 and m=3
we get y+8=3(x-8)...much easier init? enjoy going through!