Is it 116? if i didnt add that up wrong thats the answer
Answer:
18.7
Step-by-step explanation:
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First you would simplify the equation <span>(7x²+2x+5)+(3x²-8x-10) lets start with the first part
</span><span>(7x²+2x+5)
</span>7x² + 2x which = 49x + 2x which also = 51x Then you add the last part (+5)
51x + 5
Now you simplify the last part.
<span>(3x²-8x-10)
</span>3x²-8x which=9x - 8x which also = 1x or simply x Then add the last part (-10) Which you'll get x-10
51x + 5) + (x - 10) = 52x -5
so your answer is 52x - 5
Basically here all you want to do it substitute the values x=1 and x=2 for the given function. Use your slope formula 
.
Do same for x=3 and x=4
You next divide plug in values in to this expression:
Answer:
Step-by-step explanation:
(-1 -7)/(-5 + 5) = -8/0 = undefined
