What is k(-8) when given the function
k(x) = x +5 – 2x2?
1 answer:
By the way, the typed out question is not proper. Be sure to be clear on signs, like absolute value.
Absolute value of -8+5 is 3. This is because -3 is turned positive due to | |
(-8)^2 = 64
Multiply 64*2, equal to 128
Then solve. — 64-128= -64
-64 is the answer
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Answer:
Yes.
Step-by-step explanation:
Substitute the values for the variables in the equation.
y = x
(8) = (8)
Its 10.4if u need proof just ask :)
Answer:
y = ( 5 / 9 )x + 30
Step-by-step explanation:
y - y1 = m ( x - x1 )
m = 5 / 9
y - ( 5 ) = ( 5 / 9 ) [ x - ( - 45 ) ]
y - 5 = 5 / 9 ( x + 45 )
y - 5 = ( 5 / 9 )x + 25
y = ( 5 / 9 )x + 30
x + 150 = 180
x = 180 - 150
x= 30
then
X = 30
so, when x+ 85 =180
30+85 = 180
115= 180
180-115
= 65
