Standard form of quadrating function ax^2 + bx + c
a > 1, the graph gets smaller as a gets bigger
0<a<1 the graph gets wider
1. x^2
2. 2x^2
3. 3x^2
Since the 7 is in front of the parentheses you must multiply it by everything inside the parentheses. 7 times X is 7X and 7 times -2 is -14. Then you need to make the X be by itself on one side, to do that you have to add 14 to -14 to make it disappear, and also add 14 to the other side, to 28. Then you divide both sides by 7 to make X be by itself.
7(x-2)=28
7X-14=28
7x=42
X=6
Answer:
1.08 Miles
How I Found The Answer:
2.65 + 1.52 + 0.75 = 4.92
6 - 4.92 = 1.08
I Said Alexis Wished To Have An Even Number So She Ran 1.08 Miles.
You multiply 0.4 by 4.2 and that equals 1.68 so sumeet uses 1.68 gallons of gas in 4.2 hours.
We are given the following function and want to find the y-intercept:
Just substitute the value x=0 into the equation to find the value of the y-intercept:
Simplify
Simplify again
Since the value of f(x), or y, when x=0 is 66, the y-intercept of this function is 66.
Let me know if you need any clarifications, thanks!
~ Padoru