y=-3x+2.5
when x is -1.5 what value of y makes the equation true
y = 3*1.5 + 2.5 = 4.5+2.5 = 7.0
Y=-3x+2.5
To find the value of y that makes the equation true when x is -1.5 in the equation y = -3x + 2.5, you can substitute x = -1.5 into the equation and solve for y.
So, replacing x with -1.5, the equation becomes:
y = -3(-1.5) + 2.5
Now, let's simplify the equation:
y = 4.5 + 2.5
y = 7
Therefore, the value of y that makes the equation true when x is -1.5 is 7.