Write a numerical expression for the phrase and simplify it.The sum of 7 and -7, decreased by 8
A. [7 + (-7)] + 8; 8
B. [7 - (-7)] - 8; 6
C. [7 + (-8)] + 7; 6
D. [7 + (-7)] - 8; -8
Answer: D
Mathematics
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Write the English sentence as an equation in two variables. Then graph the equation.The y-value is six less than twice the x-value.
A. y = x + 6
B. y = 2x - 6
C. y = x - 6
D. y = 2x + 6
Mathematics
Subtract and simplify.
- 
A. 
B. 
C. 
D. 
Mathematics
Determine if the equation is linear.7x + 8 = x - 2
A. Linear B. Not linear
Mathematics
Find the inverse of the function.f(x) = x3 - 8
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
+ 8
D. Not invertible
Mathematics