We first need to write the function in standard form.
y = -x^2 - 7x + 18
To find the axis of symmetry, we do -b/2a
The a and b are the coefficients of the x values.
So a would be -1 since -x is same as -1x
Follow that, b would be -7.
Then just plug the values in. - (-7)/2(-1) = -7/2
The axis of symmetry is -7/2
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How am i sapposed to answer this with no words to go in the spot to pick from
Answer
D. Rent textbooks
Explanation
Textbook rental from Chegg allows students to rent books and save money on their college books. Here a student can rent a textbook required by the lecturers and alter return it for free when done. Chegg offers lower charges for renting books than purchasing the book from stores.