Answer:
See below
Step-by-step explanation:
Q1.
- In a function, every <u>output</u> value corresponds to exactly one <u>input
</u>
value.
<em>The words to be interchanged are underlined. The function as per definition has exactly one output for each input.</em>
Q2.
Part A
- Because it has 2 same input value for 2 different output values
Part B
- The two points are (4, -2) and (4, 2)
You need to subtract everything to the left side and set it equal to zero. Combine like terms.
Then, the coefficient of x^2 is a, the coefficient of x is b, and the constant term is c.
4x^2 - 5 = 3x + 4
4x^2 - 3x - 5 - 4 = 0
4x^2 - 3x - 9 = 0
a = 4; b = -3; c = -9


So we can make an equation for this, being 7=1/3x, as that effectively says she can make 3 drawings per page.
Knowing this, we can multiply it by 3 to get x=21 (since if she can draw 3 drawings per page, we can imagine that if each drawing took a page she would need 3 times the pieces of paper), therefore she can make 21 drawings.