# Graph y equals minus three sin(four)(x plus pi divide two)

Graph y=-3sin(4)(x+pi/2)
Use the slope-intercept form to find the slope and y-intercept.
The slope-intercept form is , where is the slope and is the y-intercept.
Find the values of and using the form .
The value of is the gradient of the line, and the y-intercept is the value of .
Slope:
y-intercept:
Slope:
y-intercept:
Any line can be graphed using two points. Select two values, and plug them into the equation to find the corresponding values.
Calculate the x-intercept.
To find the x-intercept(s), substitute in for and Calculate .
Find solution to the equation.
Should be rewritten the equation as .
Add to both sides of the equation.
First, divide each term by and simplify.
Divide each term in by .
The common factor should be canceled of .
Divide by .
x-intercept(s) in point form.
x-intercept(s):
x-intercept(s):
Find the y-intercept.
To find the y-intercept(s), substitute in for and Calculate .
Solve the equation.
Delete parentheses.
Clarify .
First, multiply by .
Subtract from .
y-intercept(s) in point form.
y-intercept(s):
y-intercept(s):
Create a table of the and values.
Plot the line with the slope and the y-intercept, or the points.
Slope:
y-intercept:
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