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brittanysanders
06.01.2021 •
Mathematics
What is 4x+5y=-30 In slope intercept form
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Ответ:
y=-4/5-30/5
y=-4/5-6 is the slope intercept form
Ответ:
You're first asked to find the equation for the function in slope-intercept form. Slope-intercept means that you need to find an equation that can be written as y=mx+c, where m and c are numbers and m is the slope of the line and c is the y-intercept (i.e. the value of y when x is 0).
You already have three values of x and their corresponding y values (or f(x)).
If you write out your equation y=mx+c, subsituting in the values of x and y that you already know, you can then solve th equations as simultaneous equation to find your values of m and c.
So:
For x=10, y=21.75
so:
21.75=10m+c (Call this Equation 1)
For x=14, y=30.35
so:
30.35=14m+c (Call this Equation 2)
If you take Equation 2 from Equation 1, you will eliminate c leaving you with an equation you can solve to find the value of m. So:
[30.35=14m+c] - [21.75=10m+c]
Step-by-step explanation: