The answer would be 19 because you take the highest number (23) and subtract the smallest number (4) which would equal 19.
Y= f(x)= ax+b
when x= -1, y= -1
-1= -a+b | * ( -1)
when x= -3, y=2
2= -3a+b
-3a+b= 2
a - b= 1
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2a=3
a=3/2 is the slope
-6x=19+17
-6x=36 /(-6)
x=-6
Answer:
x= -21
Step-by-step explanation:
6/7x=-18
divide both sides by 6/7
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x= -21
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