5x + 2 is a binomial, because it has two terms (5x) and (2).
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Answer:
7.) 7
10.) 0
Step-by-step explanation:
When it means "evaluate the function", it's in essence asking us to see what the function spits out when we feed it a certain input. Our inputs are our x values, which spit out a y value.
Evaluating the function when x = 1:
Let's look at where the function has an x value of 1. We see it near the bottom of the table and see the y value associated with the input is 7. So when the function is fed 1 as an input, it spits out 7.
Evaluating the function when f(x) = - 2:
This one is a weird because of the new notation. Just think of it as some value of f, which we don't know (so we represent it as an x-variable) must equal -2. So let's look at our table to find out where our output is -2. We find that when f(x) = -2 the input is 0. So the input which gives -2 is 0.
It is 2x(x-7)+3(x-7) = (2x+3)(x-7)
I'm going to write out all of the money he gets each week, and when he has enough to pay back his sister, I will subtract the money he payed her.
35 5 40 75 110 145 180 215 250 285 220 255 290 325 360 395 430 465 500 535
Now count how many numbers there are (20), and that's your answer! :)
The answer is 20
Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)
