The number in parenthesis after f is the x coordinate. Basically, it says which y coordinate is tied with an x value. In choice a, it says that when x is 0 y is 3, etc.
So, you can look at the graph to see which answer choice has a point from the graph. Choice a says (0,3), and that does not match. Choice b says (5,-1) and that does match. So the answer is B.
*(x,y)*
The substitution method means you replace the variable in one equation with the other equation, so your new equation is x+4x-8=10. Add 10 to both sides to get 5x=18. Divide both sides by 5 to get x=3.6. This is a weird equation, but then to get y, work backwords. 3.6 times 2=7.2. 7.2-4=3.2 y=3.2. Finally to finish checking solve the equation as normal. 3.6+6.4=10. I hope this helped! Please give brainliest!
Your final answer is x=3.6 y=3.2
Pretty sure it's A ?? That's what I got. I'm taking this right now.
The answer is 1/140
Work Shown
0.3 / 42
Convert and Rewrite
3/10 x 1/42
Reduce The Numbers With the greatest Common divisor 3
1/10 x 1/14
Multiply the fractions
1/140 or
AlTernative Form 0.007114285 , -1 over 140
I Hope This Help
-Dante
