I would think a reflection across the x-axis but I’m not sure
Answer: 21 dollars was his bill before the tip
Step-by-step explanation: 4.20 is 20% of what he paid with no tip included. This means you can set up an equation like this.
4.20 = .2x This means that $4.20 is (is means =) 20% of (of means multiply) x (which is the unknown factor).
The value of f(19) in the given equation is 55.
<h3>What is the function of a linear equation?</h3>
The function of a linear equation illustrates a straight line graph and for a given set of input into the function, there is usually a specific output.
Given that:
We are to find the f(x) = 19.
So;
f(19) = 3(19) - 2
f(19) = 57 - 2
f(19) = 55
Learn more about the function of a linear equation here:
brainly.com/question/14323743
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Answer:
(-3, -2) is a solution of y = -2x + -8
Step-by-step explanation:
y = -2x + -8
(-3, -2) are the coordinates of P(x,y)
-2= -2(-3) - 8
-2 = +6 - 8
-2 = -2
Since LHS = RHS, (-3, -2) is a solution of y = -2x + -8
