Determine the sign of f and fy at each indicated point using the contour diagram of f shown below. (The point P is that in the first quadrant, at a positive and y value; Q through T are located clockwise from P, so that is at a positive value and negative y, etc.) (a) At point P, fzis ? fy is ? (b) At point Q, fz is? fy is ? (c) At point S, fz is ? fy is ? ✓and vand ✓ and -25 -25 15 8 -18-5 45 -20 10 5 15 5-10 -15, -25 -25

Q: find the angle between the following straight lines .y=4-2x,y=3x+7

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A: Consider the given diagram, it is given that OM=8 and MY=9. here the objective is to find the value…

Q: can not we find the answer in terms y=....?

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Q: Plot these points ?

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A: The intercept for observations with X2 equal to 0 is determined as shown below.

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