Answer and workings in the attachment below.
For find f(-2) of f(x)=7x+3, plug in -2 for x.
7(-2)+3=y
-14+3=y
y=-11
To find the rate, or the slope, you divide x/y. So 2/6 is 1/3. 3 over 9 is also 1/3. So the rate is 1/3. In rates you always divide, you don't mulitply or subtract or add to find the rate.
72, 96, 84, 12
72 + (7x+24) = 180
7x + 96 = 180
7x = 84
x = 12
If you need a total of 1700$ then you need 114 tickets because 1700/15 is 114
Answer:
The value of y is 12
Step-by-step explanation:
y∝x
y = kx
y = 2x
when x = 6, y = 2(6)
= 12
(Correct me if i am wrong)
