Answer:
Christie spent 17.64$.
Step-by-step explanation:
0.2 x 15.50 = 3.1
15.50 + 3.1 = 12.4
0.2 x 5.50 = 1.1
5.50 - 1.1 = 4.4
12.4 + 4.4 = 16.8
0.05 x 16.8 = 0.84
0.84 + 16.8 = 17.64
Plug in 0 for x. This is the y slope intercept, which in your case is -2.
Then plug in 1. 2/7(1) - 2
Do it until you can predict which point on the graph it will be next.
Your range would be a list of your f(x) or y values.
Example: {5, 10, 15,...}
Your range would be a list of your x values, or the numbers you plugged in for x.
Example: {1, 2, 3,...}
The value of variable x of provided quadratic function at h(x) = 18 are 6.56 and -0.13. These points explain solution of the equation.
<h3>What is quadratic formula?</h3>
Quadratic formula is the formula which is used to find the roots of a quadratic equation.The standard form of the quadratic equation is,
ax²+bx+c=0
For the above equation, the quadratic formula can be given as,
The equation of variable x is given as,
h(x) = 7x²-45x + 12,
The value of h(x) = 18 has to be found out. Put 18 on the place of h(x) in the above equation.
18 = 7x²-45x + 12
0= 7x²-45x + 12-18
0=7x²-45x -6
Find the roots of the equation using the quadratic formula:
Thus, the value of variable x of provided quadratic function at h(x) = 18 are 6.56 and -0.13. These points explain the solution of the equation.
Learn more about the quadratic formula here;
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Answer: At least 9 vehicles
Step-by-step explanation:
Let the number of vehicles be represented by x
Based on the information given, will be calculated using the equation below:
2400 + 250x ≥ 4500
250x ≥ 4500 - 2400
250x ≥ 2100
x ≥ 2100 / 250
x ≥ 8.4
The person must sell at least 9 vehicles
Answer:
(
2 , 5 ) and
(
26
/3 , 0
)
Step-by-step explanation:
Find the equation using the two points.
Use y
=
m
x
+
b to calculate the equation of the line, where m represents the slope and b represents the y-intercept.
To calculate the equation of the line, use the y
=
m
x
+
b format.
Slope is equal to the change in y over the change in x
, or rise over run.
The change in x is equal to the difference in x-coordinates (also called run), and the change in y is equal to the difference in y-coordinates (also called rise).
Substitute in the values of x and y into the equation to find the slope.
Multiply the numerator and denominator of the complex fraction by 3
.
Finding the slope m
.
Find the value of b using the formula for the equation of a line.
Find the x-intercepts.
To find the x-intercept(s), substitute in 0 for y and solve for x
.
solve the equation
x-intercept(s):
Find the y-intercepts.
To find the y-intercept(s), substitute in 0 for x and solve for y
.
y-intercept(s):