The pair of points (6,y) and (10,-1) lie on a line with a slope 1(over)4. What is the value of y?
Answers
The formula for Slope is m = where m is the slope and the x's and y's are your given coordinates. So, plug the given information into the formula and solve for y.
m = Plug in the given values = Cross multiply 10 - 6 = -4 - 4y Subtract 4 = -4 - 4y Add 4 to both sides 8 = -4y Divide both sides by -4 -2 = y Swich the sides to make it easier to read y = -2
Check your answer by plugging -2 back into the equation with the other values.
[tex] \frac{1}{4} [/tex] = Simplify the double negative = Simplify the numerator and denominator =
Since both sides equal each other, y = -2.
Use the formula to find the slope which is m= y2-y1 over x2-x2. The equation would look like 1/4= -1 -y over 10-6. First, you do the subtraction in the denominator and you get 4. The equation would look like 1/4=-1-y over 4.
Then, you multiply the 4 to both side in order to get rid of the fraction from the equation. You would then have 1=-1-y. You add -1 to both side and you would have 2=-y. Since the variable cannot be negative, you divide -1 from both side and get -2=y. Therefore the answer is y=-2.
Hope this helps.
The phone you want to purchase is $200. You have a coupon for 30% off the purchase price. How much will you pay for the phone after the discount?
Answers
Answer:
$140
Step-by-step explanation:
Orignal Price: $200
200 x 0.3
= 60
200 - 60
= 140
Answer:the phone will cost 140
Step-by-step explanation:
Which of the Hollowing is an irrational number? 8.5 3.14 0.3578 0.33333333