The rate of change is also known as the slope. To easily find the slope of a line, put the equation into slope intercept form by isolating y on one side.
8 + y = 2x
y = 2x - 8
By definition, the rate of change is 2.
1) plug in 1 for x to get the following:
1^2 + 2(1)
1^2 = 1
2 * 1 = 2
1 + 2 = 3
the answer is 3.
2) for estimating, your teacher may have another method but here's how i was taught:
determine whether to round up or down to a whole number:
7.9 rounds up to 8 and 0.67 rounds up to 1, and 8 * 1 is 8, so i would estimate the answer to be 8.
(i can't do the remaining two sorry!!)
Answer:
Step-by-step explanation:
cant help sorry- :T
23, it has to be less than 24 since 25, 26, and 30 are greater than 24.