Find the coordinates of the intersection of the graphs of the functions y = -14x + 32 and y = 26x-8
August 10, 2021 | education
| In order to find the coordinates of the point of intersection of the graphs of the functions given by the equations y = -14x + 32 and y = 26x – 8.
System of equations:
y = -14x + 32;
y = 26x – 8.
We will solve the system by the substitution method. Substitute in the first equation of the system instead of y the expression from the second equation and solve the resulting linear equation.
System of equations:
26x – 8 = -14x + 32;
y = 26x – 8.
We solve the first equation of the system:
26x + 14x = 32 + 8;
40x = 40;
x = 1.
System of equations:
x = 1;
y = 26x – 8 = 26 * 1 – 8 = 26 – 8 = 18.
Answer: (1; 18).
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