curl --request POST \
  --url https://api.iotools.cloud/v1/tool/slope-intercept-form-calculator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "inputMode": "slope-intercept",
  "slope": "2",
  "yIntercept": "-3"
}
'

{
  "tool": "slope-intercept-form-calculator",
  "tool_version": "1.0.2",
  "outputs": {
    "result": [
      {
        "metric": "Slope (m)",
        "value": "2"
      },
      {
        "metric": "Y-Intercept (b)",
        "value": "-3"
      },
      {
        "metric": "X-Intercept",
        "value": "1.5"
      },
      {
        "metric": "Equation (slope-intercept form)",
        "value": "y = 2x - 3"
      },
      {
        "metric": "Standard Form",
        "value": "-2x + y + 3 = 0"
      },
      {
        "metric": "Slope Type",
        "value": "Positive (steep)"
      },
      {
        "metric": "Angle from X-Axis",
        "value": "63.4349°"
      }
    ],
    "steps": "Given m = 2, b = -3 — already in slope-intercept form."
  },
  "credits_used": 5,
  "credits_remaining": null
}