Marna is playing a game where you score -5 points each time you guess the correct answer. The goal is to get the lowest score. T
2 answers:
Answer:
<h2>She needs 17 correct answers.</h2>Step-by-step explanation:
Givens
- You score -5 points each time you guess the correct answer.
- Marna must have a score less than -80 points to win.
Now, let's be the total number of correct answers. If you score -5 points per correct answer, that means
.
So, we know that Marna must score LESS THAN -80 points, that can be expressed as
Therefore, Marna need 17 correct answer to win the game. Remember that she needs less than -80 points, so with 16 answer she's gonna get barely -80, which is not enough to win the game.
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The Vertex Form is 
So
Hope this helps!!
So
Hope this helps!!
Slope-intercept form:
y = mx + b
"m" is the slope, "b" is the y-intercept (the y value when x = 0)
You need to find "m" and "b".
If you look at the graph, when x = 0, y is 1, so the y-intercept is 1.
y = mx + 1
To find "m", you can use the slope formula and find two points on the graph and plug it in, or you can use this:
Rise is the number of units you go up(+) or down(-)
Run is the number of units you go to the right.
If you look at the graph, from each point you go up 1 unit, and to the right 1 unit. So your slope is or 1
y = 1x + 1
y = x + 1