Jose combined the like terms in the expression. Marc claims that he made a mistake. Negative 8 x squared y minus 17 x y squared + 12 x y minus 8 + 5 x squared y minus x y squared minus 12 x y = negative 3 x squared y minus 18 x y squared + 24 x y minus 8

Jose asks Marc to explain how to fix his error. Which is the best explanation that Marc can give Jose?
Jose, you should have added 12 and –12 for the xy terms.
Jose, you should have added –8 and –5 for the for the x squared y terms.
Jose, you should have added –17 and 1 for the x squared y terms.
Jose, you should have added –8 and the two 12s for the xy terms.

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the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.

hi there

the slope is 1/3.

this is because from the y-intercept, you go up one, and you go to the right three, to get to the next exact point on the graph. this is known at the “rise over run.”

p.s. (if you need it).your y-intercept is -2, because that is the point on the graph where the line crosses the y-axis.

hope that : )