Pls help omg I need the input (and rule if u can pls) (っ °Д °;)っ
1 answer:
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The equation of the line that passes through the points (1 , 4) and (-2, -5) is y = 3x + 1
<h3>Further explanation</h3>Solving linear equation mean calculating the unknown variable from the equation.
Let the linear equation : y = mx + c
If we draw the above equation on Cartesian Coordinates , it will be a straight line with :
<em>m → gradient of the line</em>
<em>( 0 , c ) → y - intercept</em>
Gradient of the line could also be calculated from two arbitrary points on line ( x₁ , y₁ ) and ( x₂ , y₂ ) with the formula :
If point ( x₁ , y₁ ) is on the line with gradient m , the equation of the line will be :
Let us tackle the problem.
Let :
(1 , 4) → (x₁ , y₁)
(-2, -5) → (x₂ , y₂)
To find the straight line equation, the following formula can be used :
- Infinite Number of Solutions : brainly.com/question/5450548
- System of Equations : brainly.com/question/1995493
- System of Linear equations : brainly.com/question/3291576
Grade: High School
Subject: Mathematics
Chapter: Linear Equations
Keywords: Linear , Equations , 1 , Variable , Line , Gradient , Point
Answer:
1) Coupon A gives the lower price.
The price with coupon A is less than the price with coupon B.
Step-by-step explanation:
Here, according to the given details:
<u>Coupon A : $45 rebate on $65 phone</u>
So, the actual paid price for phone = $65 - $45 = $20
If we apply Coupon A , the cost of the phone = $20
<u>Coupon B : 65% off on $65 phone</u>
Now, calculating 65% of 65, we get:
So, the discounted amt on $65 phone is $42,25
So, the actual paid price for phone = $65 - $42.25 = $22.75
If we apply Coupon B , the cost of the phone = $22.75
Hence, Coupon A gives the lower price.
The price with coupon A is less than the price with coupon B.