The slope = 4
y-intercept = -3
The equation of a line in slope intercept form is written as y=mx+b
where m is the slope and b is the y-intercept.
replace m and b with the given information:
The equation is: y = 4x-3
The standard form of a quadratic function is y = 3/2x² + 17/2x - 7
<h3>How to determine the
quadratic equation?</h3>
From the question, the points on the quadratic equation are given as
(2,4), (3,5) and (4,3)
The standard form of a quadratic equation is represented as
y = ax² + bx + c
So, we have
Point (2,4):
4a + 2b + c = 4
Point (3,5):
9a + 3b + c = 5
Point (4,3):
16a + 4b + c = 3
Solving using an online calculator. we have
a = 3/2, b = 17/2 and c = -7
Substitute a = 3/2, b = 17/2 and c = -7 in y = ax² + bx + c
y = 3/2x² + 17/2x - 7
Hence, the equation is y = 3/2x² + 17/2x - 7
Read more about quadratic equation at
brainly.com/question/1214333
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none of those are right it is 4 because there is no x behind the 4.
First find the percent of the sales tax added with the tip amount, which is 20%
15% + 5% = 20%
and the percent amount to the original amount, so
20% + 100% = 120%
$18=120% of original amount (12/10 is the same thing as 120%), so
18/12*10=$15= price of meal before tax and tip!
