Question

preciso urgeenteee da resolução pra agora é prova
4x+2y=42
x+y=16
pode ser metodo da adição ou substituição

Answer 1

Resposta:

Explicação passo a passo:

The x-intercept is where the graph crosses the x-axis. To find the x-intercept, we set y1=0 and then solve for x.

4x + 2y = 42

4x + 2(0) = 42

x1 = 10.5    y1 = 0

The y-intercept is where the graph crosses the y-axis. To find the y-intercept, we set x2=0 and then solve for y.

4x + 2y = 42

4(0) + 2y = 42

y2 = 21    x2 = 0

Find slope

The slope of the line (m) is the steepness of the line. It is the change in the y coordinate divided by the corresponding change in the x coordinate. Simply plug in the coordinates from above and solve for m to get the slope for 4x + 2y = 42

m = (y2 - y1)/(x2 - x1)

m = (21 - 0)/(0 - 10.5)

m = -2

Answer 2

Resposta:

Resposta anexada com o passo a passo da conta.