Answer:
Q1 y = 17/2x - 2
Q2 y = -3x + 14
Q3 y = 1/4x
Q4 y = 1/8x + 10
Step-by-step explanation:
See, the problem here is, you did everything to NOT convert the decimals into fractions. You would´ve had the right answers if you just learned to deal with the fractions. I´ll only going to be explaining 2 questions since there´s four of them.
Question Two
You take two points from the table, then you do y2 - y1 over x2 - x1. -1 - 5 / 6 - 3 = -6/3 and 3 divided by -6 is -3. Which should give you "m" the slope. Which the slope for this question is -3. To find "b" our y-intercept, we will need to plug in the points from one of the two points we took in the chart into the format of y = mx + b. I chose to do, 5 = -3(3) + b. Multiply m times the x, 5 = - 9 + b. So now, we add 9 to itself to cancel itself out and add it to 5. Which gives us, 14 = b. So our equation is, y = -3x + 14
Question 3
This one is relatively easy, since looking at the table we know theres no b or m. Just a constant rate times x. The same thing we did the last question, take two points from the equation. y2 - y1 over x2 - x1. 1 - 0 over 4 - 0. Which gives us 1/4. 1/4 is our constant rate of change. y = 1/4x
<h3>
Answer: 1</h3>
Reason:
The first peak is at x = 0. The next peak over is at x = 1. The difference is 1-0 = 1 which is the period.
The period is the amount of time needed to repeat the cycle.
The height of flagpole is 49.5 feet.
Step-by-step explanation:
Given,
Shadow casted by streetlight = 2 foot
Height of streetlight = 9 feet
Ratio of shadow to height = 2:9
Shadow casted by flagpole = 11 foot
Let,
x be the height of flagpole
Ratio of shadow to height = 11:x
Using proportion
Ratio of shadow to height :: Ratio of shadow to height
Product of mean = Product of extreme
Dividing both sides by 2
The height of flagpole is 49.5 feet.
Keywords: ratio, proportion
Learn more about proportions at:
#LearnwithBrainly
Answer:
48% of 75 is 36 so then 60% of 45 is 27, so then we do simple subtraction and do 36-27 which gives us 9
Step-by-step explanation:
If the transformation will result to an after-image that not is congruent to the original figure, then the transformation is most probably a dilation. Amon the choices, the answer must be
<span>a reflection across the y-axis followed by a dilation with a scale factor of 0.5
</span>
